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WorksheetsYEAR REVIEW
Total questions: 122
Worksheet time: 1hrs 1mins
Newton's 1st Law is the law of INERTIA. What is inertia? Select all that apply
objects are rest stay at right unless an outside force acts on them
objects in motion stay in motion unless an outside force acts on them
every action has an equal and opposite reaction
more force is required to move an object with more mass
Objects that are moving tend to keep moving unless something stops them and objects are rest tend to remain at rest unless something makes them move. What is this called?
friction
gravity
volume
intertia
What does Newton's 3rd Law state?
objects at rest stay at rest unless an outside forces acts on them and objects in motion stay in motion unless an outside force acts on them
every action has an equal and opposite reaction
friction and gravity can speed up a moving object
an object with less mass requires less force to move
Newton's 2nd Law states that force is equal to mass times accelerations (F = M x A)
Which statements about mass and force are true? Select all that apply.
the more mass an object has, the more force is required to move it
the more mass an object has, the more force is required to stop it moving
the more mass an object has, the less inertia it has.
the less mass an object has, the more force is required to move.
mass has nothing to do with how much force is required to start or stop a moving object
Which are examples of NONCONTACT forces? Select all that apply.
friction of the ground on a car's tires
gravity pulling a baseball back to the ground after it is hit
magnetism pulling a magnet toward metal
a push on an object to get it to move.
pulling a sled up a hill
Which is an example of kinetic energy?
a pancake on a plate
a softball after it is hit by a bat
a person pushing against a brick wall
a student in a chair, looking at a book
Motion is the change in the __________________ of an object.
mass
position
volume
density
When forces are balanced,
objects are set in motion
there is no change in the motion of an object
an object always moves upwards
the motion of an object becomes faster
Which tool helps an astronomer see objects in space more clearly by causing them to appear larger?
microscope
telephone
telescope
star chart
Which tool helps a person identify the patterns of the stars and constellations in the night sky?
telescope
star chart
magnifying glass
microscope
Long ago, scientists thought of the solar system as a GEOCENTRIC model. What does GEOCENTRIC mean?
the sun in the center of the solar system
the Earth the center of the solar system
the number of moon that orbit the Earth
the Earth and other planets orbit the sun
Why was the GEOCENTRIC model of the solar system that people had long ago incorrect?
because the moon does not orbit the Earth
because the sun is not the center of the solar system
because the Earth is not the center of the solar system
because there is more than one moon that orbits Mars
Which object is the farthest away from the Earth?
the sun
Mars
Neptune
the stars in the constellation Orion
How many constellations are there?
100
52
88
71
Why are different constellations visible during different times of the year?
because the Earth rotates on its axis
because the Earth's axis is tilted
because the Earth revolves around the sun
because the sun revolves around the Earth
What is volume?
the amount of matter in an object
how much space something takes up
how heavy an object is
how far away an object is from another object
Which tool can help a person find which way is North?
a star chart
a telescope
a calculator
a compass
Which is NOT a NATURAL disaster?
a ship spilling oil into the ocean
a wildfire caused by lightning
a hurricane
a landslide or mudslide
Which is a homogeneous mixture?
koolaid
salt & sand
a salad
trail mix
What are EMISSIONS?
leaving something out
something that decays or decomposes
pollution released into the atmosphere
chemicals like fertilizer or pesticide
What are EMISSIONS?
leaving something out
something that decays or decomposes
pollution released into the atmosphere
chemicals like fertilizer or pesticide
Which names only INNER planets?
Mercury, Venus, Earth, Mars
Earth, Mars, Jupiter, Saturn
Jupiter, Saturn, Uranus, Neptune
Venus, Saturn, Neptune, Mars
Which names only OUTER planets?
Venus, Saturn, Earth, Mercury
Jupiter, Mars, Venus, Mercury
Mercury, Venus, Earth, Mars
Jupiter, Saturn, Uranus, Neptune
What is the closest OUTER planet to the Earth?
Mercury
Venus
Mars
Jupiter
What are the outer planets also known as?
gas giants
huge circles
rocky planets
terrestrial planets
What are the inner planets also known as?
little circles
rocky planets
stars
gas giants
Which planet is small and rocky, like the Earth?
Jupiter
Mars
Uranus
Neptune
Which planet has a gaseous surface?
Saturn
Mercury
Mars
Venus
What do all of the planets in the solar system have in common?
they are all about the same size
they all take the same amount of time to orbit the sun
they all rotate on their axis at the same speed
they all orbit the sun
Which planet is closest to the sun AND has the shortest orbit around the sun?
Mars
Earth
Mercury
Venus
What is in the center of our solar system?
Mercury
Earth
the moon
a star - the sun
Why does our sun look larger and brighter than other stars?
our sun is the largest star
our sun is the closest star to us
our sun is farther away than other stars
our sun is yellow
Which is true about the revolution of the Earth around the sun?
It takes Earth 365 days to make one revolution around the sun
It takes Earth 88 days to make one revolution around the sun
It takes Earth 24 hours to make one revolution around the sun
It takes Earth 492 years to make one revolution around the sun
Which statement is true?
Mercury has a longer year than Neptune
Earth has a longer year than Uranus
Neptune has a longer year than Earth
Venus has a longer year than Saturn
Which statement about the sun is correct?
the sun is a star that orbits the Earth
the sun is a planet that orbits all the other planets
the sun is a star that the planets orbit around
the sun is a moon that orbits Neptune
What is the 5th planet from the sun?
Jupiter
Venus
Mercury
Saturn
Which is true about the Earth's rotation time?
It takes Earth 92 days to rotate on its axis
It takes Earth 24 hours to rotate on its axis
It takes Earth 365 years to rotate on its axis
It takes Earth 39 minutes to rotate on its axis
If the density of liquid A is 3.9 and the density of liquid C is 1.0, which of these could be the density of liquid B?
2.3
0.9
4.5
0.72
Choose the TWO (2) measurements that you need in order to find the density of an object.
mass
size
length
weight
volume
Which of these objects would float in plain water?
Object A - density 0.56
Object B - density 2.99
Object C - density 1.3
Object D. - density 3.02
What is the VOLUME of an object?
the amount of matter in an object
how much the object weighs
the amount of space something takes up
the color of an object
Which of these is the amount of space something takes up?
mass
weight
volume
height
Which of these has the greatest VOLUME?
a phone
a bottle of water
a dog
a refrigerator
What the amount of matter (or the amount of "stuff", atoms and molecules) in an object?
mass
weight
volume
temperature
What is MASS?
the amount of matter in an object
the amount of space that an object takes up
the color and height of an object
the length and width of an object
If the MASS of an object is 25 and the VOLUME is 17, what will the object do when placed in water?
sink
float
disappear
turn colors
Which of these objects has the greatest MASS?
a gallon of milk
a 3 year old child
a stapler
a car
How can you increase the density of water?
you can dissolve salt in it
you can add an iron block to it
you can pour some of it out
you can add some more water to it
When oil and water are placed in the same glass, the oil goes to the top. Why does this happen?
because the water is less dense than the oil
because the oil is less dense than the water
because the oil is more dense than the water
because they have the same density
All liquids have the same density.
true
false
What is the density of plain water?
1
20
25
100
Which tool can you use to find the density of a rock?
a graduated cylinder
a spring scale
a ruler
a pan balance
Which of these could be the volume of a liquid?
77 milliliters
80 grams
15 kilograms
10 pounds
Which of these could be the mass of an object?
15 milliliters
20 liters
18 inches
33 grams
A can of coke and a can of diet coke are the exact same size and volume. They take up the same amount of space. Why, then, does the diet coke float while the regular coke sink?
the diet coke is more dense than water
the regular coke is more dense than water
the regular coke is less dense than water
one can is red and the other is white
Which tool can be used to find the MASS of an object? SELECT ALL THAT APPLY.
spring scale
triple beam balance scale
graduated cylinder
beaker
pan balance
Which tools could be used to find the VOLUME of an irregular object or a liquid? SELECT ALL THAT APPLY.
beaker
spring scale
graduated cylinder
triple beam balance scale
pan balance
What do plants need in order for photosynthesis to happen?
CHOOSE ALL THAT APPLY.
carbon dioxide
oxygen
sunlight
soil
water
What are the products of photosynthesis?
SELECT TWO (2) ANSWERS.
oxygen
carbon dioxide
water
glucose
carbon
Which are true about the plants' parts and what they do?
CHOOSE THREE (3) ANSWERS.
roots make food for the plant
the stem transports water and nutrients
the leaves take in sunlight & perform photosynthesis
the stomata carries pollen
flowers make pollen and create seeds
What are two (2) other names for plants? (choose 2)
consumer
heterotroph
autotroph
herbivore
producer
What are TWO (2) other names for animals?
consumers
producers
heterotrophs
autotrophs
Which shows a food chain in the correct order?
sun -> producer -> carnivore -> herbivore -> decomposer
sun -> herbivore -> producer -> carnivore -> decomposer
sun -> producer -> herbivore -> carnivore -> decomposer
sun -> omnivore -> producer -> decomposer -> carnivore
Which are correct about the meanings of word parts?
Choose TWO (2).
bio = life
photo = picture
synthesis = take apart
herb = plant
omni = none
Which are true about SOLUTIONS?
Choose TWO (2)
solutions are chemically combined
solutions are a homogeneous mixture
a solution cannot be separated
solutions have a solute and a solvent
Jack made some koolaid with cherry flavored powder and sugar mixed into water. Which are true about his solution?
Choose TWO (2).
the solvent is the water
the solutes are the koolaid powder & sugar
the solvent is the koolaid powder & sugar
the solute is the water
Which word best describes sugar?
element
compound
mixture
solution
Why is salt a compound?
it is made of two elements
it can dissolve in water
it is found on the Periodic Table
it has no protons
Which are compounds?
Choose THREE (3)
water
hydrogen
oxygen
glucose
salt
Which are true about atoms?
Choose THREE (3)
protons are postive
the nucleus contains protons & neutrons
neutrons are negative
atoms are made of molecules
the electrons can move from atom to atom
Which are chemical changes?
Choose TWO (2)
cracking an egg
frying an egg
rust on a bicycle chain
dissolving sugar in water
a chocolate bar melting
Which are examples of physical changes?
Choose THREE (3)
burning
condensation
evaporation
rust / tarnish
melting
Which are elements?
Choose all that apply.
copper
hydrogen
carbon
salt
oxygen
Which is the correct formula for photosynthesis?
CHOOSE TWO (2)
6CO2 + 6H2O + sunlight = 6O2 + C6H12O6
carbon dioxide + glucose + water = oxygen + sugar
carbon dioxide + water + sunlight = oxygen + glucose
6H2O + sunlight = CO2 + C6H12O6 + sugar
sunlight + carbon dioxide + glucose = oxygen + soil
How do decomposers benefit plants?
they don't benefit plants
they return nutrients to the soil
they make their own food so they won't have to eat plants
they keep insects away from plants
How might leaves that don't receive a lot of direct sunlight look different from leaves that DO receive direct sunlight?
they would be smaller & thinner
they would be wider and larger
they would not have any chlorophyll
they would grow their own roots
What is the MOST likely reason for this plant to be leaning over?
it is trying to reach water
it is leaning toward the sunlight
it is trying to talk to its friend
it is reaching for more carbon dioxide
Which properties of metals make them a good choice for a material to build a car engine from?
Choose TWO (2)
good thermal conductivity
high melting point
strong, durable
breakable
they have luster
Which is a reason why many toys are made of plastic?
plastics can come in a variety of colors
plastic can be melted and cooled into any shape
plastics are difficult to create
plastics are man-made and are not found in nature
Why did the candle float and the marble sink in the water?
Choose TWO (2)
the water is more dense than both of them
the candle and marble are both less dense than water
the marble is more dense than the water
the candle is less dense than the water
the marble is less dense than the water
Which explains condensation?
Choose TWO (2)
gas turned into liquid
heat energy is removed
solid turns into gas
liquid turns in to gas
heat energy is added
Organisms that break down or decay dead organsims
Consumers
Producers
Decomposers
What remains in the same location in the Northern Hemisphere sky each night?
the Big Dipper
Polaris, the North Star
the constellation Leo
the constellation Ursa Major
What does this image show?
the Earth rotating on its axis
the stars revolving around the sun
Earth revolving around the sun
the stars revolving around the Earth
The constellation Orion (the great hunter) is visible in the northern hemisphere during the winter. It is not able to be seen during the summer, however. Which statement explains this?
the Earth revolves around the sun
the moon orbits the Earth
the stars that make up Orion move to another location in the galaxy
the Earth rotates on its axis
Which statement is true?
the stars rearrange to form new constellations and new shapes every year
the stars remain the same patterns and have for thousands of years
the stars are constantly moving closer to the Earth
constellations like, Orion and Leo, that could be seen hundreds of years ago are no longer visible in the sky today
Salt and water are mixed together. What is the best way to separate the salt from the water?
magnetism
filtration (using a FILTER)
sifting
evaporation
What is this example of?
a sifter
a filter
a magnet
a hat
Which of these can you use a filter to separate?
sand & rocks
salt & water
sand & water
iron filings & sand
Which of these is NOT a mixture?
fruit salad
kool aid
water
trail mix
How can a mixture of iron filings and sand be separated?
sifting (using a sifter)
filtration (using a filter)
evaporation
magnetism (using a magnet)
What is this tool, and what is it used for?
it is a sifter used to separate small from large particles
it is a filter used to separate liquids from solids
it is a magnet used to separate metals, like iron, from other things that are not attracted to magnets
it is a sifter used to separate different colored small particles
What is this SIFTER being used for?
it is being used to add rocks to the soil
it is being used to separate the large pebbles from the soil
it is being used to build sandcastles
it is being used to break rocks into smaller pieces
Magnets have a NORTH pole and a SOUTH pole end. Which statement is true?
all magnets have a north and a south pole
all magnets are straight
all magnets are blue and red
magnets only have a south pole
Iron filings and sulfur powder are combined to form a mixture. What will happen if a magnet is held over the mixture?
The magnet will attract the entire mixture.
The magnet will attract only the iron filings.
The magnet will not attract any of the mixture.
The magnet will attract only the sulfur powder.
Which method can best separate a mixture of sawdust and sand?
filtration
magnetism
evaporation
floatation
Which would REDUCE the friction on a floor?
adding carpet
mopping the floor
adding rough tiles
adding a rug
Why is oil added to a bicycle chain?
to increase friction
to reduce friction
to make it prettier
to add friction
Which surface has the most friction?
a wet floor
an icy road
an oily pan
a concrete sidewalk
In a saltwater solution, what is the solvent?
the water
the salt
the salt and the water
there's not one in saltwater
In a saltwater solution, what is the solute?
the water
the salt
the salt and the water
there's not one in saltwater
Which of these can make a solute dissolve faster in a solvent?
use a larger container
use more solvent
heat the solvent
let it sit very still
Which of these does NOT help a solute dissolve faster in a solvent?
stirring it
using smaller particles of solute
using a larger container
heating the solvent
In order for a space shuttle to leave the Earth, which force must it overcome?
gravity
water
atmosphere
magnetism
What does Newton's 3rd Law state?
everything falls to the ground
every action has no reaction whatsoever
every action has an equal and opposite reaction
gravity causes things to fall towards Earth, but not the moon
Which two properties affect the force of gravity of an object? CHOOSE 2 ANSWERS.
weight
mass
color
distance
Which force keeps the planets in orbit around the sun?
gravity
friction
weight
mass
Which of these is caused by the force of gravity?
Select all that apply.
the moon staying in orbit around the Earth
light coming from the sun
a rock falling off a mountain
the planets orbiting the sun
water evaporating
Which has the MOST gravitational pull?
the sun
the moon
Jupiter
Earth
What do an estuary and an ocean have in common?
they both contain freshwater only
they both have deep water where no sunlight reaches
they both contain plants and animals
they both can have shallow water areas
Why wouldn't a parachute work on the moon?
there isn't any gravity on the moon
there is no air on the moon
parachutes aren't allowed on the moon
nobody has ever visited the moon
What happens in the span of one year? Select all that apply.
the moon orbits the Earth about 12 times
the Earth orbits the sun one time
the Earth rotates on its axis one time
the moon orbits the Earth 2 times
If you wanted to find the density of a rock, which tools would you need? Choose two.
a yardstick to measure its height
a scale to measure its weight
a balance scale to measure its MASS
a graduated cylinder to measure its VOLUME
a thermometer to measure its temperature
What would a person who believes in the geocentric model of the solar system probably believe?
that the moon orbits the sun
that the Earth orbits the sun
that the sun and other planets orbit the Earth
that the planets orbit each other
What is pesticide
the chemical in plants' leaves that help the plant perform photosynthesis
a chemical that helps plants grow larger and faster
a chemical that kills unwanted insects or other bothersome organisms
a consumer that eats insects
Why is grass green?
because someone painted it green
because of the chlorophyll in the leaves
because the stomata make it appear green
no reason - that's just the color it is
What is a star chart used for?
to find patterns of stars and constellations in the night sky
to see objects in space closer
to find out what your horoscope says will happen to you
to find the locations of the planets
Which is the best way to stop soil erosion?
plant vegetation so the roots can keep the soil in place
dig up all the trees in the area and replace them with grass
build a fence around the land
put up a "Stop Soil Erosion" sign
Which level of the energy pyramid has the most energy?
the bottom layer - the producers
the very top layer - the apex predator
the primary consumers - the animals that eat plants
the decomposers
What kind of organism is fungi?
decomposer
consumer
producers
bacteria
What is a landfill?
a place where our garbage is dumped
an area of land that is filled with people
a place you go to get some land to fill your backyard
a place where cans are recycled
Which action can decrease the amount of garbage that is sent to a landfill?
place food scraps in a compost instead of in the trashcan
use plastic bottles instead of refilling a water bottle
use disposable forks and spoons instead of metal ones
buy and use paper plates
