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WorksheetsSTA 8 2018 Midterm Study Set
Total questions: 155
Worksheet time: 52mins
Name
Class
Date
1.
escape velocity
a)
Speed in a given direction.
b)
The velocity a rocket must achieve to establish an orbit around a body in space.
c)
the tide with the least difference between consecutive low and high tides
d)
The velocity an object must reach to fly beyond a planet's or moon's gravitational pull.
2.
velocity
a)
The velocity a rocket must achieve to establish an orbit around a body in space.
b)
the tide with the least difference between consecutive low and high tides
c)
Speed in a given direction.
d)
A region of very tightly packed gas in the sun's interior where energy is transferred mainly in the form oflight.
3.
orbital velocity
a)
The velocity a rocket must achieve to establish an orbit around a body in space.
b)
the tide with the greatest difference between consecutive low and high tides
c)
A region of very tightly packed gas in the sun's interior where energy is transferred mainly in the form oflight.
d)
The outermost layer of the sun's interior.
4.
neap tide
a)
the tide with the least difference between consecutive low and high tides
b)
A region of very tightly packed gas in the sun's interior where energy is transferred mainly in the form oflight.
c)
The outermost layer of the sun's interior.
d)
The central region of the sun, where nuclear fusion takes place.
5.
spring tide
a)
A region of very tightly packed gas in the sun's interior where energy is transferred mainly in the form oflight.
b)
The outermost layer of the sun's interior.
c)
the tide with the greatest difference between consecutive low and high tides
d)
A dark area of gas on the sun's surface that is cooler than surrounding gases.
6.
radiation zone
a)
The outermost layer of the sun's interior.
b)
The central region of the sun, where nuclear fusion takes place.
c)
A dark area of gas on the sun's surface that is cooler than surrounding gases.
d)
A region of very tightly packed gas in the sun's interior where energy is transferred mainly in the form oflight.
7.
convection zone
a)
The central region of the sun, where nuclear fusion takes place.
b)
A dark area of gas on the sun's surface that is cooler than surrounding gases.
c)
A huge, reddish loop of gas that protrudes from the sun's surface, linking parts of sunspot regions.
d)
The outermost layer of the sun's interior.
8.
core
a)
The central region of the sun, where nuclear fusion takes place.
b)
A huge, reddish loop of gas that protrudes from the sun's surface, linking parts of sunspot regions.
c)
A stream of electrically charged particles that emanate from the sun's corona.
d)
An eruption of gas from the sun's surface that occurs when the loops in sunspot regions suddenly connect.
9.
sunspot
a)
A dark area of gas on the sun's surface that is cooler than surrounding gases.
b)
A stream of electrically charged particles that emanate from the sun's corona.
c)
An eruption of gas from the sun's surface that occurs when the loops in sunspot regions suddenly connect.
d)
The inner layer of the sun's atmosphere that gives off its visible light
10.
prominence
a)
A stream of electrically charged particles that emanate from the sun's corona.
b)
A huge, reddish loop of gas that protrudes from the sun's surface, linking parts of sunspot regions.
c)
The inner layer of the sun's atmosphere that gives off its visible light
d)
The outer layer of the sun's atmosphere.
11.
solar wind
a)
An eruption of gas from the sun's surface that occurs when the loops in sunspot regions suddenly connect.
b)
The inner layer of the sun's atmosphere that gives off its visible light
c)
The outer layer of the sun's atmosphere.
d)
A stream of electrically charged particles that emanate from the sun's corona.
12.
solar flare
a)
The inner layer of the sun's atmosphere that gives off its visible light
b)
An eruption of gas from the sun's surface that occurs when the loops in sunspot regions suddenly connect.
c)
The middle layer of the sun's atmosphere.
d)
A small robotic space probe that can move about the surface of a planet or moon.
13.
photosphere
a)
The outer layer of the sun's atmosphere.
b)
The middle layer of the sun's atmosphere.
c)
A small robotic space probe that can move about the surface of a planet or moon.
d)
The inner layer of the sun's atmosphere that gives off its visible light
14.
corona
a)
The middle layer of the sun's atmosphere.
b)
A small robotic space probe that can move about the surface of a planet or moon.
c)
A spacecraft that has various scientific instruments that can collect data, including visual images, but has no human crew.
d)
The outer layer of the sun's atmosphere.
15.
chromosphere
a)
The middle layer of the sun's atmosphere.
b)
A spacecraft that has various scientific instruments that can collect data, including visual images, but has no human crew.
c)
The reaction force that propels a rocket forward.
d)
An item that has uses on Earth but was originally developed for use in space.
16.
rover
a)
A spacecraft that has various scientific instruments that can collect data, including visual images, but has no human crew.
b)
A small robotic space probe that can move about the surface of a planet or moon.
c)
An item that has uses on Earth but was originally developed for use in space.
d)
A spacecraft that can carry a crew into space, return
17.
space probe
a)
The reaction force that propels a rocket forward.
b)
An item that has uses on Earth but was originally developed for use in space.
c)
A spacecraft that can carry a crew into space, return
d)
A spacecraft that has various scientific instruments that can collect data, including visual images, but has no human crew.
18.
thrust
a)
An item that has uses on Earth but was originally developed for use in space.
b)
A spacecraft that can carry a crew into space, return
c)
The reaction force that propels a rocket forward.
d)
A part of a solution present in a lesser amount and dissolved by the solvent
19.
space spin off
a)
A spacecraft that can carry a crew into space, return
b)
An item that has uses on Earth but was originally developed for use in space.
c)
A part of a solution present in a lesser amount and dissolved by the solvent
d)
A mixture that contains as much dissolved solute as is possible at a given temperature
20.
space shuttle
a)
A large artificial satellite on which people can live and work for long periods.
b)
A part of a solution present in a lesser amount and dissolved by the solvent
c)
A spacecraft that can carry a crew into space, return
d)
a mixture that contains less dissolved solute than is possible at a given temperature
21.
space station
a)
A part of a solution present in a lesser amount and dissolved by the solvent
b)
A large artificial satellite on which people can live and work for long periods.
c)
a mixture that contains less dissolved solute than is possible at a given temperature
d)
a well-mixed mixture containing a solvent and at least one solute that has the same properties throughout
22.
Solute
a)
A part of a solution present in a lesser amount and dissolved by the solvent
b)
a mixture that contains less dissolved solute than is possible at a given temperature
c)
a well-mixed mixture containing a solvent and at least one solute that has the same properties throughout
d)
A mixture that has more dissolved solute than is predicted by its solubility at a given temperature
23.
saturated solution
a)
a mixture that contains less dissolved solute than is possible at a given temperature
b)
a well-mixed mixture containing a solvent and at least one solute that has the same properties throughout
c)
A mixture that contains as much dissolved solute as is possible at a given temperature
d)
mixture that has only a little solute dissolved in it
24.
unsaturated solution
a)
a well-mixed mixture containing a solvent and at least one solute that has the same properties throughout
b)
A mixture that has more dissolved solute than is predicted by its solubility at a given temperature
c)
a mixture that contains less dissolved solute than is possible at a given temperature
d)
a mixture that has alot of solute dissolved in it
25.
solution
a)
A mixture that has more dissolved solute than is predicted by its solubility at a given temperature
b)
mixture that has only a little solute dissolved in it
c)
a well-mixed mixture containing a solvent and at least one solute that has the same properties throughout
d)
the spinning motion of a planet on its axis.
26.
supersaturated solution
a)
mixture that has only a little solute dissolved in it
b)
a mixture that has alot of solute dissolved in it
c)
A mixture that has more dissolved solute than is predicted by its solubility at a given temperature
d)
the principle stating that matter is not created or destroyed during a chemical reaction
27.
dilute solution
a)
a mixture that has alot of solute dissolved in it
b)
mixture that has only a little solute dissolved in it
c)
the principle stating that matter is not created or destroyed during a chemical reaction
d)
A substance formed as a result of a chemical reaction.
28.
concentrated solution
a)
the spinning motion of a planet on its axis.
b)
the principle stating that matter is not created or destroyed during a chemical reaction
c)
A substance formed as a result of a chemical reaction.
d)
a mixture that has alot of solute dissolved in it
29.
rotation
a)
the principle stating that matter is not created or destroyed during a chemical reaction
b)
A substance formed as a result of a chemical reaction.
c)
A chemical reaction that breaks down compounds into simpler products.
d)
the spinning motion of a planet on its axis.
30.
conservation of mass
a)
A substance formed as a result of a chemical reaction.
b)
the principle stating that matter is not created or destroyed during a chemical reaction
c)
the minimum amount of energy needed to get a chemical reaction started
d)
a reaction in which one element replaces another in a compound or when two elements in different compounds trade places
31.
Product
a)
A chemical reaction that breaks down compounds into simpler products.
b)
the minimum amount of energy needed to get a chemical reaction started
c)
a reaction in which one element replaces another in a compound or when two elements in different compounds trade places
d)
A substance formed as a result of a chemical reaction.
32.
Decomposition
a)
the minimum amount of energy needed to get a chemical reaction started
b)
A chemical reaction that breaks down compounds into simpler products.
c)
a rapid reaction between oxygen and fuel that results in fire
d)
A short, easy way to show a chemical chemical reaction using symbols.
33.
activation energy
a)
a reaction in which one element replaces another in a compound or when two elements in different compounds trade places
b)
a rapid reaction between oxygen and fuel that results in fire
c)
the minimum amount of energy needed to get a chemical reaction started
d)
a biological catalyst that lowers the activation energy of reaction in cells
34.
replacement
a)
a rapid reaction between oxygen and fuel that results in fire
b)
A short, easy way to show a chemical chemical reaction using symbols.
c)
a reaction in which one element replaces another in a compound or when two elements in different compounds trade places
d)
A reaction that releases energy in the form of heat.
35.
combustion
a)
A short, easy way to show a chemical chemical reaction using symbols.
b)
a rapid reaction between oxygen and fuel that results in fire
c)
A reaction that releases energy in the form of heat.
d)
A substance that enters into a chemical reaction.
36.
chemical equation
a)
A short, easy way to show a chemical chemical reaction using symbols.
b)
A reaction that releases energy in the form of heat.
c)
A substance that enters into a chemical reaction.
d)
a reaction that absorbs energy in the form of heat
37.
enzyme
a)
a biological catalyst that lowers the activation energy of reaction in cells
b)
A substance that enters into a chemical reaction.
c)
a reaction that absorbs energy in the form of heat
d)
The name often given to the four inner planets: Mercury, Venus, Earth, and Mars.
38.
Exothermic Reaction
a)
A reaction that releases energy in the form of heat.
b)
a reaction that absorbs energy in the form of heat
c)
The name often given to the four inner planets: Mercury, Venus, Earth, and Mars.
d)
The name often given to the first four outer planets: Jupiter, Saturn, Uranus, and Neptune.
39.
reactant
a)
a reaction that absorbs energy in the form of heat
b)
A substance that enters into a chemical reaction.
c)
The name often given to the first four outer planets: Jupiter, Saturn, Uranus, and Neptune.
d)
A characteristic of a substance that can be observed without changing the substance into another substance.
40.
endothermic reaction
a)
a reaction that absorbs energy in the form of heat
b)
The name often given to the first four outer planets: Jupiter, Saturn, Uranus, and Neptune.
c)
A characteristic of a substance that can be observed without changing the substance into another substance.
d)
A characteristic of a substance that describes its ability to change into different substances.
41.
terrestrial planets
a)
The name often given to the four inner planets: Mercury, Venus, Earth, and Mars.
b)
A characteristic of a substance that can be observed without changing the substance into another substance.
c)
A characteristic of a substance that describes its ability to change into different substances.
d)
The part of a solution that is present in the largest amount and dissolves a solute.
42.
gas giant
a)
A characteristic of a substance that can be observed without changing the substance into another substance.
b)
The name often given to the first four outer planets: Jupiter, Saturn, Uranus, and Neptune.
c)
The part of a solution that is present in the largest amount and dissolves a solute.
d)
a solid that forms a solution during a chemical reaction
43.
Physical property
a)
A characteristic of a substance that describes its ability to change into different substances.
b)
A characteristic of a substance that can be observed without changing the substance into another substance.
c)
a solid that forms a solution during a chemical reaction
d)
A model of the universe in which Earth is at the center of the revolving planets and stars.
44.
Chemical Property
a)
The part of a solution that is present in the largest amount and dissolves a solute.
b)
a solid that forms a solution during a chemical reaction
c)
A model of the universe in which Earth is at the center of the revolving planets and stars.
d)
A characteristic of a substance that describes its ability to change into different substances.
45.
solvent
a)
a solid that forms a solution during a chemical reaction
b)
A model of the universe in which Earth is at the center of the revolving planets and stars.
c)
The part of a solution that is present in the largest amount and dissolves a solute.
d)
An orbit in which a satellite orbits Earth at the same rate as Earth rotates and thus stays over the same place all the time.
46.
precipitate
a)
A model of the universe in which Earth is at the center of the revolving planets and stars.
b)
A model of the solar system in which Earth and the other planets revolve around the sun.
c)
An orbit in which a satellite orbits Earth at the same rate as Earth rotates and thus stays over the same place all the time.
d)
a solid that forms a solution during a chemical reaction
47.
geocentric
a)
A model of the universe in which Earth is at the center of the revolving planets and stars.
b)
An orbit in which a satellite orbits Earth at the same rate as Earth rotates and thus stays over the same place all the time.
c)
a number in a chemical formula
d)
A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
48.
heliocentric
a)
An orbit in which a satellite orbits Earth at the same rate as Earth rotates and thus stays over the same place all the time.
b)
A model of the solar system in which Earth and the other planets revolve around the sun.
c)
A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
d)
the number of protons in the nucleus of the atom
49.
geosynchronous orbit
a)
a number in a chemical formula
b)
A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
c)
the number of protons in the nucleus of the atom
d)
An orbit in which a satellite orbits Earth at the same rate as Earth rotates and thus stays over the same place all the time.
50.
subscript
a)
A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
b)
a number in a chemical formula
c)
The scientific law that states that an object at rest will stay at rest and an object in motion will stay in motion with a constant speed and direction unless acted on by a force.
d)
The scientific law that states that every object in the universe attracts every other object.
51.
Coefficient
a)
the number of protons in the nucleus of the atom
b)
The scientific law that states that an object at rest will stay at rest and an object in motion will stay in motion with a constant speed and direction unless acted on by a force.
c)
A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
d)
a material that increases the rate of a reaction by lowering the activation energy
52.
atomic number
a)
The scientific law that states that an object at rest will stay at rest and an object in motion will stay in motion with a constant speed and direction unless acted on by a force.
b)
The scientific law that states that every object in the universe attracts every other object.
c)
the number of protons in the nucleus of the atom
d)
a material that decreases the rate of a reaction
53.
Newton's first law of motion
a)
The scientific law that states that every object in the universe attracts every other object.
b)
a material that increases the rate of a reaction by lowering the activation energy
c)
a material that decreases the rate of a reaction
d)
The scientific law that states that an object at rest will stay at rest and an object in motion will stay in motion with a constant speed and direction unless acted on by a force.
54.
law of universal gravitation
a)
The scientific law that states that every object in the universe attracts every other object.
b)
a material that decreases the rate of a reaction
c)
The two days of the year on which the sun reaches its greatest distance north or south of the equator.
d)
The two days of the year on which neither hemisphere is tilted towards or away from the sun
55.
catalyst
a)
a material that decreases the rate of a reaction
b)
The two days of the year on which the sun reaches its greatest distance north or south of the equator.
c)
The two days of the year on which neither hemisphere is tilted towards or away from the sun
d)
a material that increases the rate of a reaction by lowering the activation energy
56.
inhibitor
a)
The two days of the year on which the sun reaches its greatest distance north or south of the equator.
b)
The two days of the year on which neither hemisphere is tilted towards or away from the sun
c)
a material that decreases the rate of a reaction
d)
the partial or total blocking of one object in space by another.
57.
Solstice
a)
The two days of the year on which neither hemisphere is tilted towards or away from the sun
b)
The two days of the year on which the sun reaches its greatest distance north or south of the equator.
c)
the partial or total blocking of one object in space by another.
d)
The blocking of sunlight to the moon that occurs when Earth is directly between the sun and moon
58.
equinox
a)
The blocking of sunlight to Earth that occurs when the moon is directly between the sun and Earth.
b)
the partial or total blocking of one object in space by another.
c)
The blocking of sunlight to the moon that occurs when Earth is directly between the sun and moon
d)
The two days of the year on which neither hemisphere is tilted towards or away from the sun
59.
solar eclipse
a)
the partial or total blocking of one object in space by another.
b)
The blocking of sunlight to the moon that occurs when Earth is directly between the sun and moon
c)
a chemical bond formed when atoms share 3 pairs of electrons
d)
The blocking of sunlight to Earth that occurs when the moon is directly between the sun and Earth.
60.
eclipse
a)
The blocking of sunlight to the moon that occurs when Earth is directly between the sun and moon
b)
the partial or total blocking of one object in space by another.
c)
a chemical bond that forms when 2 atoms share electrons
d)
a chemical bond formed when atoms share 2 pairs of electrons
61.
Lunar Eclipse
a)
a chemical bond formed when atoms share 3 pairs of electrons
b)
a chemical bond that forms when 2 atoms share electrons
c)
The blocking of sunlight to the moon that occurs when Earth is directly between the sun and moon
d)
The region of the solar system between the orbits of Mars and Jupiter, where many asteroids are found.
62.
triple bond
a)
a chemical bond that forms when 2 atoms share electrons
b)
a chemical bond formed when atoms share 2 pairs of electrons
c)
The region of the solar system between the orbits of Mars and Jupiter, where many asteroids are found.
d)
a chemical bond formed when atoms share 3 pairs of electrons
63.
covalent bond
a)
a chemical bond that forms when 2 atoms share electrons
b)
The region of the solar system between the orbits of Mars and Jupiter, where many asteroids are found.
c)
A doughnut-shaped region that stretches from around Pluto's orbit to about 100 times Earth's distance from the sun.
d)
A streak oflight in the sky produced by the burning of a meteoroid in Earth's atmosphere.
64.
double bond
a)
The region of the solar system between the orbits of Mars and Jupiter, where many asteroids are found.
b)
A doughnut-shaped region that stretches from around Pluto's orbit to about 100 times Earth's distance from the sun.
c)
A streak oflight in the sky produced by the burning of a meteoroid in Earth's atmosphere.
d)
a chemical bond formed when atoms share 2 pairs of electrons
65.
asteroid belt
a)
A doughnut-shaped region that stretches from around Pluto's orbit to about 100 times Earth's distance from the sun.
b)
The region of the solar system between the orbits of Mars and Jupiter, where many asteroids are found.
c)
Rocky objects revolving around the sun that are too small and numerous to be considered planets.
d)
A meteoroid that passes through the atmosphere and hits Earth's surface.
66.
Kuiper belt
a)
A streak oflight in the sky produced by the burning of a meteoroid in Earth's atmosphere.
b)
Rocky objects revolving around the sun that are too small and numerous to be considered planets.
c)
A meteoroid that passes through the atmosphere and hits Earth's surface.
d)
A doughnut-shaped region that stretches from around Pluto's orbit to about 100 times Earth's distance from the sun.
67.
meteor
a)
Rocky objects revolving around the sun that are too small and numerous to be considered planets.
b)
A streak oflight in the sky produced by the burning of a meteoroid in Earth's atmosphere.
c)
A chunk of rock or dust in space
d)
A chunk of rock or dust in space.
68.
asteroid
a)
A meteoroid that passes through the atmosphere and hits Earth's surface.
b)
A chunk of rock or dust in space
c)
Rocky objects revolving around the sun that are too small and numerous to be considered planets.
d)
a substance that taste bitter feels slippery and turns red litmus paper blue.
69.
meteorite
a)
A chunk of rock or dust in space
b)
A meteoroid that passes through the atmosphere and hits Earth's surface.
c)
a substance that taste bitter feels slippery and turns red litmus paper blue.
d)
A reaction of an acid with a base, yielding a solution that is not as acidic or base as the starting solutions were.
70.
meteoroids
a)
A chunk of rock or dust in space.
b)
A substance tastes sour, reacts with metals, and carbonates turns blue litmus paper red
c)
A reaction of an acid with a base, yielding a solution that is not as acidic or base as the starting solutions were.
71.
meteoroid
a)
a substance that taste bitter feels slippery and turns red litmus paper blue.
b)
A reaction of an acid with a base, yielding a solution that is not as acidic or base as the starting solutions were.
c)
A chunk of rock or dust in space.
d)
the way in which acids react with some metals so as to eat away the metal
72.
base
a)
A reaction of an acid with a base, yielding a solution that is not as acidic or base as the starting solutions were.
b)
substance tastes sour, reacts with metals, and carbonates turns blue litmus paper red
c)
the way in which acids react with some metals so as to eat away the metal
d)
a substance that taste bitter feels slippery and turns red litmus paper blue.
73.
neutralization
a)
substance tastes sour, reacts with metals, and carbonates turns blue litmus paper red
b)
the way in which acids react with some metals so as to eat away the metal
c)
an element belonging to group 17 of the periodic table
d)
A reaction of an acid with a base, yielding a solution that is not as acidic or base as the starting solutions were.
74.
acid
a)
the way in which acids react with some metals so as to eat away the metal
b)
an element belonging to group 17 of the periodic table
c)
a mixture in which particles can be seen and easily separated by settling or filtration
d)
substance tastes sour, reacts with metals, and carbonates turns blue litmus paper red
75.
Corrosive
a)
the way in which acids react with some metals so as to eat away the metal
b)
a mixture in which particles can be seen and easily separated by settling or filtration
c)
A device that expels gas in one direction to move in the opposite direction.
d)
Physical, mental, visual, and other representations of an idea to help people understand a concept that they cannot observe directly
76.
halogen
a)
an element belonging to group 17 of the periodic table
b)
A device that expels gas in one direction to move in the opposite direction.
c)
Physical, mental, visual, and other representations of an idea to help people understand a concept that they cannot observe directly
d)
a 1 or 2 letter set of characters
77.
Suspension
a)
A device that expels gas in one direction to move in the opposite direction.
b)
a mixture in which particles can be seen and easily separated by settling or filtration
c)
a 1 or 2 letter set of characters
d)
an atom, or group of atoms that has become electrically charged
78.
rocket
a)
A device that expels gas in one direction to move in the opposite direction.
b)
a 1 or 2 letter set of characters
c)
an atom, or group of atoms that has become electrically charged
d)
small positively charged particles that are in the nucleus of an atom
79.
model
a)
a 1 or 2 letter set of characters
b)
an atom, or group of atoms that has become electrically charged
c)
Physical, mental, visual, and other representations of an idea to help people understand a concept that they cannot observe directly
d)
The study of the moon, stars, and other objects in space.
80.
symbol
a)
a 1 or 2 letter set of characters
b)
small positively charged particles that are in the nucleus of an atom
c)
The study of the moon, stars, and other objects in space.
d)
elements in the same vertical column of the periodic table; also called a group
81.
ion
a)
small positively charged particles that are in the nucleus of an atom
b)
The study of the moon, stars, and other objects in space.
c)
elements in the same vertical column of the periodic table; also called a group
d)
an atom, or group of atoms that has become electrically charged
82.
protons
a)
The study of the moon, stars, and other objects in space.
b)
elements in the same vertical column of the periodic table; also called a group
c)
small positively charged particles that are in the nucleus of an atom
d)
a substance that can't be broken down into any other substances by chemical or physical means
83.
astronomy
a)
elements in the same vertical column of the periodic table; also called a group
b)
a material that releases energy when it burns
c)
a substance that can't be broken down into any other substances by chemical or physical means
d)
The study of the moon, stars, and other objects in space.
84.
family
a)
a material that releases energy when it burns
b)
a substance that can't be broken down into any other substances by chemical or physical means
c)
the attraction between oppositely charged ions
d)
elements in the same vertical column of the periodic table; also called a group
85.
fuel
a)
a material that releases energy when it burns
b)
the attraction between oppositely charged ions
c)
The part of a shadow surrounding the darkest part.
d)
Life that exists other than that on Earth.
86.
element
a)
a substance that can't be broken down into any other substances by chemical or physical means
b)
The part of a shadow surrounding the darkest part.
c)
Life that exists other than that on Earth.
d)
one of the different apparent shapes of the moon as seen from earth
87.
ionic bond
a)
The part of a shadow surrounding the darkest part.
b)
Life that exists other than that on Earth.
c)
one of the different apparent shapes of the moon as seen from earth
d)
the attraction between oppositely charged ions
88.
penumbra
a)
Life that exists other than that on Earth.
b)
one of the different apparent shapes of the moon as seen from earth
c)
an element of group 18 on the Periodic table
d)
The part of a shadow surrounding the darkest part.
89.
extraterrestrial life
a)
Life that exists other than that on Earth.
b)
an element of group 18 on the Periodic table
c)
The amount of matter in an object.
d)
a material made of 2 or more elements that has the properties of a metal
90.
phases
a)
an element of group 18 on the Periodic table
b)
one of the different apparent shapes of the moon as seen from earth
c)
a material made of 2 or more elements that has the properties of a metal
d)
The solid inner core of a comet.
91.
noble gas
a)
an element of group 18 on the Periodic table
b)
a material made of 2 or more elements that has the properties of a metal
c)
The solid inner core of a comet.
d)
The process by which hydrogen atoms join together in the sun's core to form helium.
92.
Mass
a)
a material made of 2 or more elements that has the properties of a metal
b)
The amount of matter in an object.
c)
The process by which hydrogen atoms join together in the sun's core to form helium.
d)
anything that has mass, and occupies space
93.
alloy
a)
The solid inner core of a comet.
b)
The process by which hydrogen atoms join together in the sun's core to form helium.
c)
anything that has mass, and occupies space
d)
a material made of 2 or more elements that has the properties of a metal
94.
nucleus
a)
The process by which hydrogen atoms join together in the sun's core to form helium.
b)
anything that has mass, and occupies space
c)
The solid inner core of a comet.
95.
nuclear fusion
a)
The process by which hydrogen atoms join together in the sun's core to form helium.
b)
anything that has mass and occupies space
c)
a term used to describe a material that can be hammered into a shape
d)
A large round pit caused by the impact of a meteoroid.
96.
matter
a)
anything that has mass and occupies space
b)
a term used to describe a material that can be hammered into a shape
c)
A large round pit caused by the impact of a meteoroid.
97.
matter
a)
a term used to describe a material that can be hammered into a shape
b)
A large round pit caused by the impact of a meteoroid.
c)
elements in the same vertical column of the periodic table; also called a family
d)
anything that has mass and occupies space
98.
malleable
a)
A large round pit caused by the impact of a meteoroid.
b)
elements in the same vertical column of the periodic table; also called a family
c)
a term used to describe a material that can be hammered into a shape
d)
an orderly 3 dimensional patterns of ions or atoms in a solid
99.
craters
a)
elements in the same vertical column of the periodic table; also called a family
b)
A large round pit caused by the impact of a meteoroid.
c)
an orderly 3 dimensional patterns of ions or atoms in a solid
d)
A thin disk of small ice and rock particles surrounding a planet.
100.
group
a)
negatively charged particles that move around outside the nucleus of an atom
b)
elements in the same vertical column of the periodic table; also called a family
c)
A thin disk of small ice and rock particles surrounding a planet.
d)
a compound that is composed to of molecules
101.
electrons
a)
an orderly 3 dimensional patterns of ions or atoms in a solid
b)
A thin disk of small ice and rock particles surrounding a planet.
c)
negatively charged particles that move around outside the nucleus of an atom
d)
The tendency of an object to resist a change in motion
102.
crystal
a)
A thin disk of small ice and rock particles surrounding a planet.
b)
a compound that is composed to of molecules
c)
an orderly 3 dimensional patterns of ions or atoms in a solid
d)
The force of gravity on an object.
103.
ring
a)
a compound that is composed to of molecules
b)
The tendency of an object to resist a change in motion
c)
A thin disk of small ice and rock particles surrounding a planet.
d)
the study of the properties of matter and how matter changes
104.
molecular compound
a)
a compound that is composed to of molecules
b)
The force of gravity on an object.
c)
the study of the properties of matter and how matter changes
d)
a mixture containing small, undissolved particles that do not settle out
105.
inertia
a)
The tendency of an object to resist a change in motion
b)
the study of the properties of matter and how matter changes
c)
a mixture containing small, undissolved particles that do not settle out
d)
The path of an object as it revolves around another object in space.
106.
weight
a)
the study of the properties of matter and how matter changes
b)
a mixture containing small, undissolved particles that do not settle out
c)
The force of gravity on an object.
d)
a term used to describe a material that can be pulled out into a long wire
107.
chemistry
a)
a mixture containing small, undissolved particles that do not settle out
b)
the study of the properties of matter and how matter changes
c)
a term used to describe a material that can be pulled out into a long wire
d)
A spherical region of comets that surrounds the solar system.
108.
Colloid
a)
a mixture containing small, undissolved particles that do not settle out
b)
a term used to describe a material that can be pulled out into a long wire
c)
A spherical region of comets that surrounds the solar system.
d)
A place that is empty of all matter.
109.
orbit
a)
a term used to describe a material that can be pulled out into a long wire
b)
A spherical region of comets that surrounds the solar system.
c)
The path of an object as it revolves around another object in space.
d)
an ion that is made of 1 or more atoms
110.
ductile
a)
A spherical region of comets that surrounds the solar system.
b)
A place that is empty of all matter.
c)
an ion that is made of 1 or more atoms
d)
a term used to describe a material that can be pulled out into a long wire
111.
Oort cloud
a)
A place that is empty of all matter.
b)
an ion that is made of 1 or more atoms
c)
A spherical region of comets that surrounds the solar system.
d)
a well tested idea that connects a wide range of observations
112.
vacuum
a)
A place that is empty of all matter.
b)
a combination of symbols that represent different elements in a compound
c)
a well tested idea that connects a wide range of observations
d)
the process in which substances undergo chemical changes that result in the formation of new substances
113.
polyatomic ions
a)
a combination of symbols that represent different elements in a compound
b)
a well tested idea that connects a wide range of observations
c)
an ion that is made of 1 or more atoms
d)
a range of values used to express the concentration of hydrogen ions in a solution
114.
chemical formula
a)
a combination of symbols that represent different elements in a compound
b)
the process in which substances undergo chemical changes that result in the formation of new substances
c)
a range of values used to express the concentration of hydrogen ions in a solution
d)
An object that revolves around another object in space.
115.
scientific theory
a)
the process in which substances undergo chemical changes that result in the formation of new substances
b)
a range of values used to express the concentration of hydrogen ions in a solution
c)
a well tested idea that connects a wide range of observations
d)
a substance made of 2 or more elements chemically combined in a specific ratio or proportion
116.
chemical reaction
a)
the process in which substances undergo chemical changes that result in the formation of new substances
b)
An object that revolves around another object in space.
c)
a substance made of 2 or more elements chemically combined in a specific ratio or proportion
d)
an imaginary line that passes through Earths center and the North and South poles about which Earth rotates
117.
pH scale
a)
a range of values used to express the concentration of hydrogen ions in a solution
b)
a substance made of 2 or more elements chemically combined in a specific ratio or proportion
c)
an imaginary line that passes through Earths center and the North and South poles about which Earth rotates
d)
a system of organizing time that defines the beginning, length, and divisions of a year
118.
satellite
a)
An object that revolves around another object in space.
b)
an imaginary line that passes through Earths center and the North and South poles about which Earth rotates
c)
a system of organizing time that defines the beginning, length, and divisions of a year
d)
2 or more substances that are mixed together but not chemically combined
119.
compound
a)
a substance made of 2 or more elements chemically combined in a specific ratio or proportion
b)
a system of organizing time that defines the beginning, length, and divisions of a year
c)
2 or more substances that are mixed together but not chemically combined
d)
The collection of information about Earth and other objects in space using satellites or probes.
120.
axis
a)
a system of organizing time that defines the beginning, length, and divisions of a year
b)
an imaginary line that passes through Earths center and the North and South poles about which Earth rotates
c)
The collection of information about Earth and other objects in space using satellites or probes.
d)
The trapping of heat by a planet's atmosphere.
121.
calendar
a)
2 or more substances that are mixed together but not chemically combined
b)
The collection of information about Earth and other objects in space using satellites or probes.
c)
a system of organizing time that defines the beginning, length, and divisions of a year
d)
Dark, flat areas on the moon's surface formed from huge ancient lava flows.
122.
mixture
a)
The collection of information about Earth and other objects in space using satellites or probes.
b)
2 or more substances that are mixed together but not chemically combined
c)
Dark, flat areas on the moon's surface formed from huge ancient lava flows.
d)
a neutral particle made of 2 or more atoms joined by covalent bonds
123.
remote sensing
a)
The trapping of heat by a planet's atmosphere.
b)
Dark, flat areas on the moon's surface formed from huge ancient lava flows.
c)
The collection of information about Earth and other objects in space using satellites or probes.
d)
the force that holds atoms together
124.
greenhouse effect
a)
Dark, flat areas on the moon's surface formed from huge ancient lava flows.
b)
a neutral particle made of 2 or more atoms joined by covalent bonds
c)
the force that holds atoms together
d)
The trapping of heat by a planet's atmosphere.
125.
Maria
a)
a neutral particle made of 2 or more atoms joined by covalent bonds
b)
the force that holds atoms together
c)
The darkest part of a shadow.
d)
Dark, flat areas on the moon's surface formed from huge ancient lava flows.
126.
molecule
a)
the force that holds atoms together
b)
The darkest part of a shadow.
c)
the central control center of an atom
d)
a neutral particle made of 2 or more atoms joined by covalent bonds
127.
chemical bond
a)
the force that holds atoms together
b)
the central control center of an atom
c)
an attraction between a positive metal ion, and the electrons surround it
d)
A system in which no matter is allowed to enter or leave
128.
umbra
a)
the central control center of an atom
b)
The darkest part of a shadow.
c)
A system in which no matter is allowed to enter or leave
d)
A push or pull exerted on an object.
129.
nucleus
a)
an attraction between a positive metal ion, and the electrons surround it
b)
A system in which no matter is allowed to enter or leave
c)
the central control center of an atom
d)
the smallest particle of an element
130.
metallic bond
a)
A system in which no matter is allowed to enter or leave
b)
A push or pull exerted on an object.
c)
an attraction between a positive metal ion, and the electrons surround it
d)
small uncharged particles that are found in the nucleus of an atom
131.
Closed System
a)
A push or pull exerted on an object.
b)
A system in which no matter is allowed to enter or leave
c)
small uncharged particles that are found in the nucleus of an atom
d)
a system in which matter can enter from or escape to the surroundings
132.
force
a)
the smallest particle of an element
b)
small uncharged particles that are found in the nucleus of an atom
c)
a system in which matter can enter from or escape to the surroundings
d)
A push or pull exerted on an object.
133.
atom
a)
small uncharged particles that are found in the nucleus of an atom
b)
a system in which matter can enter from or escape to the surroundings
c)
the smallest particle of an element
d)
A negatively charged ion made of oxygen and hydrogen.
134.
neutrons
a)
a system in which matter can enter from or escape to the surroundings
b)
small uncharged particles that are found in the nucleus of an atom
c)
A negatively charged ion made of oxygen and hydrogen.
d)
a covalent bond in which electrons are shared equally
135.
open system
a)
the electrons in the highest energy level
b)
A negatively charged ion made of oxygen and hydrogen.
c)
a system in which matter can enter from or escape to the surroundings
d)
a representation of the valence electrons of an atom using dots
136.
valence electrons
a)
A negatively charged ion made of oxygen and hydrogen.
b)
a covalent bond in which electrons are shared equally
c)
the electrons in the highest energy level
d)
a measure of how much solute can dissolve in a given solvent at a given temperature
137.
hydroxide ion
a)
a covalent bond in which electrons are shared equally
b)
a representation of the valence electrons of an atom using dots
c)
A negatively charged ion made of oxygen and hydrogen.
d)
a covalent bond in which electrons share unequal electrons
138.
nonpolar bond
a)
a covalent bond in which electrons are shared equally
b)
a measure of how much solute can dissolve in a given solvent at a given temperature
c)
a covalent bond in which electrons share unequal electrons
d)
An oval shape, which may be elongated or nearly circular; the shape of the planets' orbits.
139.
electron dot diagram
a)
a measure of how much solute can dissolve in a given solvent at a given temperature
b)
a covalent bond in which electrons share unequal electrons
c)
a representation of the valence electrons of an atom using dots
d)
A compound that changes color in the presence of an acid or a base
140.
Solubility
a)
a covalent bond in which electrons share unequal electrons
b)
An oval shape, which may be elongated or nearly circular; the shape of the planets' orbits.
c)
a measure of how much solute can dissolve in a given solvent at a given temperature
d)
elements in the same horizontal row
141.
polar bond
a)
a covalent bond in which electrons share unequal electrons
b)
A compound that changes color in the presence of an acid or a base
c)
elements in the same horizontal row
d)
The fuzzy outer layer of a comet.
142.
ellipse
a)
A compound that changes color in the presence of an acid or a base
b)
An oval shape, which may be elongated or nearly circular; the shape of the planets' orbits.
c)
The fuzzy outer layer of a comet.
d)
The condition of experiencing weightlessness in orbit.
143.
Indicator
a)
elements in the same horizontal row
b)
The fuzzy outer layer of a comet.
c)
The condition of experiencing weightlessness in orbit.
d)
A compound that changes color in the presence of an acid or a base
144.
period
a)
The fuzzy outer layer of a comet.
b)
elements in the same horizontal row
c)
a specific amount of energy an electron has
d)
A device built to observe distant objects by making them appear closer
145.
coma
a)
The condition of experiencing weightlessness in orbit.
b)
a specific amount of energy an electron has
c)
A device built to observe distant objects by making them appear closer
d)
The fuzzy outer layer of a comet.
146.
microgravity
a)
The condition of experiencing weightlessness in orbit.
b)
A device built to observe distant objects by making them appear closer
c)
A positively charged ion (H+) formed of a hydrogen atom that has lost its electron
d)
The attractive force between objects; its strength depends on their masses and the distance between them.
147.
energy level
a)
a specific amount of energy an electron has
b)
A positively charged ion (H+) formed of a hydrogen atom that has lost its electron
c)
The attractive force between objects; its strength depends on their masses and the distance between them.
d)
A loose collection of ice, dust, and small rocky particles, typically with a long, narrow orbit.
148.
Telescope
a)
A positively charged ion (H+) formed of a hydrogen atom that has lost its electron
b)
A device built to observe distant objects by making them appear closer
c)
A loose collection of ice, dust, and small rocky particles, typically with a long, narrow orbit.
d)
the periodic rise and fall of the level of water in the ocean
149.
hydrogen ion (H+)
a)
The attractive force between objects; its strength depends on their masses and the distance between them.
b)
A loose collection of ice, dust, and small rocky particles, typically with a long, narrow orbit.
c)
the periodic rise and fall of the level of water in the ocean
d)
A positively charged ion (H+) formed of a hydrogen atom that has lost its electron
150.
Gravity
a)
A loose collection of ice, dust, and small rocky particles, typically with a long, narrow orbit.
b)
The attractive force between objects; its strength depends on their masses and the distance between them.
c)
a compound that consists of positive, and negative ions
d)
an element belonging to group 1 of the periodic table
151.
comet
a)
the periodic rise and fall of the level of water in the ocean
b)
A loose collection of ice, dust, and small rocky particles, typically with a long, narrow orbit.
c)
an element belonging to group 1 of the periodic table
d)
The movement of an object around another object
152.
tide
a)
a compound that consists of positive, and negative ions
b)
an element belonging to group 1 of the periodic table
c)
the periodic rise and fall of the level of water in the ocean
d)
The velocity an object must reach to fly beyond a planet's or moon's gravitational pull.
153.
ionic compound
a)
a compound that consists of positive, and negative ions
b)
The movement of an object around another object
c)
The velocity an object must reach to fly beyond a planet's or moon's gravitational pull.
d)
Speed in a given direction.
154.
alkali metal
a)
The movement of an object around another object
b)
The velocity an object must reach to fly beyond a planet's or moon's gravitational pull.
c)
an element belonging to group 1 of the periodic table
d)
The velocity a rocket must achieve to establish an orbit around a body in space.
155.
revolution
a)
The movement of an object around another object
b)
Speed in a given direction.
c)
The velocity a rocket must achieve to establish an orbit around a body in space.
d)
the tide with the least difference between consecutive low and high tides
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