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3rd quarter science exam

Total questions: 122

Worksheet time: 1hrs 6mins

Name
Class
Date
1.

what is gravity?

a)

a force of attraction between objects

b)

everything in the universe

c)

how much matter is in an object

d)

the inward force that causes an object to move in a circular path

2.

what two factors influence gravitational force?

a)

mass

b)

distance

c)

volume

d)

length

3.

what does gravity account for in the formation of the solar system?

a)

planets

b)

galaxies

c)

stars

d)

aliens

4.

what model of our solar system is earth-centered?

a)

geocentric

b)

heliocentric

5.

what model of our solar system is sun-centered?

a)

geocentric

b)

heliocentric

6.

what are kepler's 3 laws about?

a)

the orbits of the planets are ellipses, and the sun is the one focus of the ellipse

b)

how long it took for the planets to orbit the sun and the sizes of their orbits

c)

as a planet moves around its orbit, it sweeps out equal areas in equal time

d)

a planet only explodes from the sun's heat every 200,000 years

7.

what is centripetal force?

a)

a force of attraction between objects

b)

everything in the universe

c)

how much matter is in an object

d)

the inward force that causes an object to move in a circular path

8.

what are the steps in the formation of the solar system?

a)

the solar nebula collapses, the sun forms, planetesimals form, planets form

b)

the sun forms, the solar nebula collapses, planetesimals form, planets form

c)

the solar nebula collapses, the sun forms, planets form, planetesimals form

d)

the sun forms, planetesimals form, planets form, the solar nebula collapses

9.

what are the layers of the sun starting in the center and moving outward?

a)

core, radiative zone, convective zone, photosphere, chromosphere, corona

b)

core, radiative zone, convective zone, chromosphere, photosphere, corona

c)

core, radiative zone, convective zone, chromosphere, photosphere, corona

d)

corona, chromosphere, photosphere, convective zone, radiative zone, core

10.

where is energy in the sun made and by what process is it created?

a)

core; nuclear fusion

b)

corona; nuclear fusion

c)

photosphere; radiation

d)

chromosphere; convection

11.

what two gases primarily make up the sun?

a)

hydrogen

b)

helium

c)

carbon

d)

oxygen

12.

what two ways are energy transferred from the core to the surface of the sun?

a)

radiation

b)

convection

c)

conduction

d)

solar flares

13.

what type of rotation does the sun have?

a)

differential rotation

b)

celestial rotation

c)

planetary rotation

d)

universal rotation

14.

what are dark spots on the sun's surface?

a)

sunspots

b)

prominences

c)

solar flares

15.

what is an explosive release of energy that can extend outwards as far as the sun's outer atmosphere?

a)

sunspots

b)

prominences

c)

solar flares

16.

what are huge loops of relatively cool gas that extend from the photosphere thousands of kilometers into the outer atmosphere?

a)

sunspots

b)

prominences

c)

solar flares

17.

one ___________ equals the average distance between the sun and earth, or approximately 150 million km.

a)

astronomical unit

b)

light year

c)

galaxy

d)

mile

18.

a/an ___________ is a celestial body that orbits around the sun, is round because of its own gravity, and isn't massive enough to clear its orbit.

a)

dwarf planet

b)

star

c)

comet

d)

asteroid

19.

what are kuiper belt objects made of?

a)

methane ice

b)

ammonia ice

c)

water ice

d)

rocky ice

20.

a/an ___________ is a celestial body that orbits around the sun, is round because of its own gravity, and isn't massive enough to clear its orbit.

a)

dwarf planet

b)

star

c)

comet

d)

asteroid

21.

what are kuiper belt objects?

a)

any minor objects in the kuiper belt

b)

comets

c)

main sequence stars

d)

asteroids and meteoroids

22.

a/an ____________ is a small body of ice, rock, and dust that follows a highly elliptical orbit around the sun.

a)

comet

b)

asteroid

c)

meteoroid

d)

kuiper belt object

23.

what are the parts of a comet?

a)

nucleus

b)

head

c)

tail

d)

coma

24.

where can comets come from?

a)

the oort cloud

b)

from millions of galaxies away

c)

the sun

d)

the kuiper belt

25.

the ___________ is a spherical region is a spherical region that surrounds the solar system and extends almost halfway to the nearest star.

a)

oort cloud

b)

sun

c)

galaxy

d)

universe

26.

a/an ____________ is a small, irregularly shaped, rocky object that orbits the sun.

a)

comet

b)

asteroid

c)

meteoroid

d)

kuiper belt object

27.

what can an asteroid be composed of?

a)

ice

b)

rock

c)

nickel

d)

carbon

e)

iron

28.

where is the asteroid belt located?

a)

between the orbits of mars and jupiter

b)

between the orbits of jupiter and saturn

c)

between the orbits of mars and saturn

d)

between the orbits of neptune and pluto

29.

a/an ____________ is a sand grained- to boulder-sized, rocky body that travels through space.

a)

meteoroid

b)

meteor

c)

meteorite

d)

asteroid

30.

a/an ____________ is a bright streak of light that results when a meteoroid burns up in earth's atmosphere.

a)

meteoroid

b)

meteor

c)

meteorite

d)

asteroid

31.

a/an ____________ is a meteoroid that reaches earth's surface without burning up.

a)

meteoroid

b)

meteor

c)

meteorite

d)

asteroid

32.

what determines the length of a day?

a)

the rotation of earth on its axis

b)

the revolution of earth on its axis

c)

the rotation of earth around the sun

d)

the revolution of earth around the sun

33.

what determines the length of a year?

a)

the rotation of earth on its axis

b)

the revolution of earth on its axis

c)

the rotation of earth around the sun

d)

the revolution of earth around the sun

34.

what causes seasons?

a)

changes in the intensity of sunlight

b)

the number of daylight hours as earth revolves around the sun

c)

the number of daylight hours as earth rotates around the sun

d)

the moon's phases

35.

what is the tilt of the earth?

a)

25.3 degrees

b)

23.5 degrees

c)

52.3 degrees

d)

53.2 degrees

36.

the spinning of a body, such as a planet, on its axis is called ____________.

a)

rotation

b)

revolution

c)

orbit

d)

traveling

37.

the motion of a body that travels around another body in space is called _______________.

a)

rotation

b)

revolution

c)

circling

d)

traveling

38.

how long does it take Earth to make one full rotation?

a)

24 hours

b)

24 days

c)

365 hours

d)

365 days

39.

how long does it take Earth to make one full revolution?

a)

24 hours

b)

24 days

c)

365 hours

d)

365 days

40.

a ___________ is a body that orbits a larger body.

a)

satellite

b)

moon

c)

planet

d)

comet

41.

what force holds the moon in orbit around earth?

a)

gravity

b)

centripetal force

c)

friction

d)

electromagnetic waves

42.

the moon is only visible from earth when it reflects __________.

a)

sunlight

b)

light from earth

c)

moonlight

d)

starlight

43.

a __________ is a daily change in the level of ocean water.

a)

tide

b)

water bulge

c)

tidal range

d)

tidal force

44.

what is high tide?

a)

a water level that is higher than the average sea level

b)

a water level that is lower than the average sea level

c)

the average sea level

d)

a tide that is so high it touches the sky

45.

what is low tide?

a)

a water level that is higher than the average sea level

b)

a water level that is lower than the average sea level

c)

the average sea level

d)

a tide that is so high it touches the sky

46.

what does our moon's orbit and earth's rotation cause?

a)

two high tides each day

b)

two low tides each day

c)

tides happen 50 minutes later each day

d)

gravitational force on the sun

47.

a __________ is the difference between the levels of ocean water at high tide and low tide.

a)

tide

b)

water bulge

c)

tidal range

d)

tidal force

48.

______________ have the largest daily tidal range.

a)

spring tides

b)

neap tides

c)

high tides

d)

low tides

49.

during which moon phases do spring tides occur?

a)

new moon

b)

full moon

c)

first quarter

d)

third quarter

50.

______________ have the smallest daily tidal range.

a)

spring tides

b)

neap tides

c)

high tides

d)

low tides

51.

during which moon phases do neap tides occur?

a)

new moon

b)

full moon

c)

first quarter

d)

third quarter

52.

a lunar eclipse occurs when...

a)

the earth is between the sun and the moon

b)

the sun is between the earth and the moon

c)

the moon is between the sun and the earth

d)

none of these

53.

during which moon phase does a lunar eclipse occur?

a)

new moon

b)

full moon

c)

first quarter

d)

third quarter

54.

during which moon phase does a solar eclipse occur?

a)

new moon

b)

full moon

c)

first quarter

d)

third quarter

55.

the ___________ is the darkest part of a shadow.

a)

umbra

b)

penumbra

56.

the ___________ is the spreading cone of lighter shadow around the __________.

a)

umbra; penumbra

b)

penumbra; umbra

57.

which of these is the correct level of organization from smallest to largest?

a)

biomolecules, organelles, cells, tissue, organ, organ system, organism

b)

biomolecules, organelles, organisms, tissue, organ, organ system, cells

c)

biomolecules, organelles, tissue, cells, organ, organ system, organism

d)

organism, organ system, organ, tissue, cells, organelles, biomolecules

58.

what is the function of a nucleus?

a)

is the control center of the cell that contains the dna which has information for making proteins

b)

captures sunlight for photosynthesis

c)

produces proteins

d)

stores water and other materials

59.

what is the function of a mitochondria?

a)

it is the powerhouse of the cell that provides (ATP) energy for cellular respiration

b)

captures sunlight for photosynthesis

c)

suspends organelles

d)

supports and protects cell

60.

what is the function of a ribosome?

a)

it is the powerhouse of the cell that provides (ATP) energy for cellular respiration

b)

produces proteins

c)

suspends organelles

d)

supports and protects cell

61.

what is the function of a cell membrane?

a)

captures sunlight for photosynthesis

b)

produces proteins

c)

suspends organelles

d)

it is a thin, flexible barrier that controls what enters and leaves the cell

62.

what is the function of a cell wall?

a)

captures sunlight for photosynthesis

b)

produces proteins

c)

protects and supports cell

d)

it is a thin, flexible barrier that controls what enters and leaves the cell

63.

what is the function of a vacuole?

a)

stores water and other materials

b)

it is the powerhouse of a cell that provides (ATP) energy for cellular respiration

c)

protects and supports cell

d)

it is a thin, flexible barrier that controls what enters and leaves the cell

64.

what is the function of a chloroplast?

a)

it is a network of canals used to transport and store substances that is a pathway between the nucleus and cell membrane

b)

captures sunlight for photosynthesis

c)

protects and supports cell

d)

is the control center of the cell that contains the dna which has information for making proteins

65.

what organelles do plant cells have that animal cells do not?

a)

cell wall

b)

chloroplasts

c)

vacuole

d)

cell membrane

66.

which is not a part of the cell theory?

a)

all organisms are composed of cells

b)

cells are the basic unit of life

c)

all cells come from preexisting cells

d)

cells can be created and destroyed

67.

a(n) ___________ cell has a nucleus.

a)

eukaryotic

b)

prokaryotic

c)

bacteria

d)

animal

68.

a(n) ___________ cell does not have a nucleus.

a)

eukaryotic

b)

prokaryotic

c)

bacteria

d)

animal

69.

what types of cells are made through mitosis?

a)

diploid

b)

haploid

70.

what types of cells are made through meiosis?

a)

diploid

b)

haploid

71.

how many cells result from mitosis?

a)

1

b)

2

c)

3

d)

4

72.

how many cells result from meiosis?

a)

1

b)

2

c)

3

d)

4

73.

how many times does a cell divide in mitosis?

a)

one

b)

two

c)

three

d)

four

74.

how many times does a cell divide in meiosis?

a)

one

b)

two

c)

three

d)

four

75.

what type of cell division results in daughter cells that are identical to the parent cell?

a)

mitosis

b)

meiosis

76.

what type of cell division results in daughter cells that are different from the parent cell?

a)

mitosis

b)

meiosis

77.

purpose of cells undergoing mitosis:

a)

to grow

b)

to replace

c)

to repair

d)

to produce gametes

78.

asexual reproduction is done with __ organism(s) and the offspring is identical to the parent(s).

a)

1

b)

2

c)

3

d)

4

79.

sexual reproduction is done with __ organism(s) and the offspring is genetically different from the parent(s).

a)

1

b)

2

c)

3

d)

4

80.

the scientific study of heredity is _________.

a)

genetics

b)

traits

c)

alleles

d)

probability

81.

a(n) ________ is a specific characteristic that varies in individuals.

a)

genotype

b)

trait

c)

allele

d)

probability

82.

a(n) ________ is a possibility for a given trait.

a)

allele

b)

gene

c)

genotype

d)

phenotype

83.

a(n) ________ is a sequence of dna that codes for proteins and determines a trait.

a)

phenotype

b)

genotype

c)

gene

d)

allele

84.

a ________ trait is shown as a capital letter.

a)

dominant

b)

recessive

85.

a ________ trait is shown as a lowercase letter.

a)

dominant

b)

recessive

86.

true/false: a dominant trait masks a recessive trait.

a)

true

b)

false

87.

a gene or allele combination is called a ________.

a)

genotype

b)

phenotype

c)

punnet square

d)

probability

88.

when physical characteristics are stated, it is called a ________.

a)

genotype

b)

phenotype

c)

punnet square

d)

probability

89.

homozygous means there are two ________ alleles for a trait.

a)

identical

b)

different

90.

heterozygous means there are two ________ alleles for a trait.

a)

identical

b)

different

91.

a diagram showing gene combinations is a ________.

a)

punnet square

b)

pedigree

c)

food web

d)

animal kingdom

92.

the chance that a given event will occur is _________.

a)

probability

b)

an allele

c)

a trait

d)

genetics

93.

what is the shape of dna?

a)

single helix

b)

double helix

c)

triple helix

d)

quadruple helix

94.

what are the "sides" of the dna ladder made of?

a)

sugar

b)

phosphate

c)

oxygen

d)

bases

95.

what are the "rungs" of the dna ladder made of?

a)

sugar

b)

phosphate

c)

oxygen

d)

bases

96.

what does adenine pair with?

a)

itself

b)

thymine

c)

guanine

d)

cytosine

97.

what does guanine pair with?

a)

adenine

b)

thymine

c)

itself

d)

cytosine

98.

the ________ system manages oxygen/carbon dioxide exchanges.

a)

respiratory

b)

digestive

c)

cardiovascular

d)

reproductive

e)

nervous

99.

the ________ system processes food and absorbs nutrients.

a)

respiratory

b)

digestive

c)

cardiovascular

d)

reproductive

e)

nervous

100.

the ________ system transports oxygen and nutrients to tissues, and removes waste.

a)

respiratory

b)

digestive

c)

cardiovascular

d)

reproductive

e)

nervous

101.

the ________ system produces germ cells (gametes).

a)

respiratory

b)

digestive

c)

cardiovascular

d)

reproductive

e)

nervous

102.

the ________ system coordinates activities of other organ systems and responds to sensations.

a)

respiratory

b)

digestive

c)

cardiovascular

d)

reproductive

e)

nervous

103.

linnaean system of classification from most general to most complex?

a)

domain, kingdom, phylum, class, order, family, genus, species

b)

species, genus, family, order, class, phylum, kingdom, domain

c)

domain, kingdom, phylum, class, order, family, species, genus

d)

kingdom, domain, phylum, class, order, family, genus, species

104.

what are the 3 domains?

a)

archaea

b)

bacteria

c)

eukarya

d)

protista

105.

what is binomial nomenclature?

a)

genus and species

b)

species and genus

c)

domain and kingdom

d)

kingdom and domain

106.

what is a food chain?

a)

the sequence of transfers of matter and energy from organism to organism

b)

a chain of 10 animals hunting and killing each other

c)

a more complex energy pyramid

d)

another name for a cladogram

107.

what is a food web?

a)

the sequence of transfers of matter and energy from organism to organism

b)

the natural interconnection of food chains

c)

a more complex energy pyramid

d)

another name for a dichotomous key

108.

at which level in an energy pyramid is there the most energy?

a)

producers

b)

primary consumers

c)

secondary consumers

d)

tertiary consumers

109.

how much energy is transferred from one trophic level to the next?

a)

1%

b)

10%

c)

50%

d)

100%

110.

what are kinds of limiting factors?

a)

biotic

b)

abiotic

c)

predatory

d)

mutualism

111.

the maximum number of organisms an ecosystem can support is ___________.

a)

carrying capacity

b)

maximum capacity

c)

parasitism

d)

natural selection

112.

when two organisms benefit, it is called ___________.

a)

mutualism

b)

commensalism

c)

parasitism

d)

predation

e)

competition

113.

when one organism benefits and the other is neutral, it is called ___________.

a)

mutualism

b)

commensalism

c)

parasitism

d)

predation

e)

competition

114.

when one organism benefits and the other is harmed, it is called ___________.

a)

mutualism

b)

commensalism

c)

parasitism

d)

predation

e)

competition

115.

when a predator hunts and kills prey, it is called ___________.

a)

mutualism

b)

commensalism

c)

parasitism

d)

predation

e)

competition

116.

the struggle among organisms for the same limited resources is called ___________.

a)

mutualism

b)

commensalism

c)

parasitism

d)

predation

e)

competition

117.

what is natural selection by evolution?

a)

organisms with favorable traits produce more offspring

b)

organisms with favorable traits produce less offspring

c)

organisms with less favorable traits produce more offspring

d)

none of these

118.

what is some evidence of evolution?

a)

fossils

b)

dna similarities

c)

similar structures

d)

all of these

119.

what is the law of superposition?

a)

younger rock is in a higher layer

b)

younger rock is in a lower layer

c)

older rock is in a higher layer

d)

older rock is in a lower layer

120.

what is the correct equation for photosynthesis?

a)

6CO2+6H2O−>C6H12O6+6O26CO_2+6H_2O->C_6H_{12}O_6+6O_2

b)

C6H12O6+6O2−>6CO2+6H2O+ATP energyC_6H_{12}O_6+6O_2->6CO_2+6H_2O+ATP\ energy  

121.

what is the correct equation for cellular respiration?

a)

6CO2+6H2O−>C6H12O6+6O26CO_2+6H_2O->C_6H_{12}O_6+6O_2

b)

C6H12O6+6O2−>6CO2+6H2O+ATP energyC_6H_{12}O_6+6O_2->6CO_2+6H_2O+ATP\ energy  

122.

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