wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

7th Grade Science CFE Review

Total questions: 70

Worksheet time: 1hrs 23mins

Name
Class
Date
1.

What is the variable the is changed in an experiment?

a)

Control variable

b)

Independent variable

c)

Dependent variable

d)

Constant

2.
The variable that is measured throughout the experiment is the ________________
Hint: It may change as a result of your testing.
a)
Controlled Variable
b)
Responsive Variable
c)
Dependent Variable
d)
Independent Variable
3.
Catherine is testing which soil will help grass grow the tallest.  The height of the grown grass is the __ variable.
a)
constant (stays the same)
b)
independent (it's what you change)
c)
dependent (it's what you measure)
4.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk.  In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid
5.
Mrs. Ahlers set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?
a)
Distance traveled by the ball
b)
Height of the ramp
c)
Mass of the ball
d)
Where the experiment took place.
6.

SC.7.N.1.2

Scientists frequently repeat the experiments of others scientists. Why is this important in science?


a. Scientists often ask each other for help in performing experiments.

b. Replication of experiments helps to confirm and verify results.

c. Scientists frequently perform other scientists’ experiments in order to practice their technique.

d. Repeating experiments is an effective way to make sure a laboratory is in optimal condition.

a)

a

b)

b

c)

c

d)

d

7.

SC.7.N.1.2

Cara read an article on why repetition and replication are so important, but she did not understand the difference between them. Which of the following best explains the two terms?


a. Repetition is when a scientist repeats an experiment; replication is when a scientist conducts an experiment on genetic material.

b. Repetition is when a scientist does the same experiment a number of times; replication is when other scientists reproduce a scientist’s experiment.

c. Repetition is when a scientist publishes in more than one scientific periodical; replication is when another scientist reproduces another scientist’s results.

d. Repetition is when a scientist commits an error in an experiment the first time and must repeat it; replication is when a scientist repeats an experiment to make sure it is valid.

a)

a

b)

b

c)

c

d)

d

8.

What happens if the results of a scientist's experiment are NOT similar to the results gathered by other scientists doing the same experiment at a later date?

a)

The results of the experiment are changed by the scientists.

b)

The results of the experiment are published in scientific journals.

c)

The results of the experiment are questioned by the other scientists.

d)

The results of the experiment are accepted by the scientific community.

9.

Which of the following is the correct chain of energy that takes place when a flashlight is turned on?

a)

chemical => electrical => light

b)

mechanical => electrical => light

c)

nuclear => chemical => light

d)

thermal => chemical => mechanical

10.

What energy transformation occurs during photosynthesis?

a)

Chemical --> Radiant

b)

Thermal --> Chemical

c)

Radiant --> Chemical

d)

Mechanical --> Thermal

11.
According to the Law of Conservation of Energy, energy cannot be _________ or ____________. 
a)
destroyed, destroyed
b)
created, saved
c)
created, destroyed
d)
lost, found
12.

What energy transformations take place when a battery operated radio is in use?

a)

electrical to chemical to sound

b)

thermal to nuclear to electrical

c)

chemical to electrical to sound

d)

chemical to sound to thermal

13.

The picture below shows a closed system before and after undergoing a change.


What was changed in the system?

a)

Particles were added to the system.

b)

Water was added to the system.

c)

Heat was added to the system.

d)

Air was added to the system.

14.

Emerson places a beaker of water on a hotplate and turns the hotplate on. The temperature in the room is 25 ºC. After the water heats to 75 ºC, she adds pieces of ice to the beaker.


Which of the following describes a transfer of heat energy that occurs during this experiment?

a)

from the air to the water

b)

from the ice to the beaker

c)

from the water to the ice

d)

from the water to the hotplate

15.

How does the thermal energy of the liquid in the larger beaker compare to the thermal energy of the liquid in the smaller beaker?

a)

The liquid in the larger beaker has less thermal energy than the liquid in the smaller beaker.

b)

The liquid in the larger beaker has more thermal energy than the liquid in the smaller beaker.

c)

The liquid in the larger beaker has the same amount of thermal energy as the liquid in the smaller beaker.

d)

The exact volume of the liquid in each beaker must be known to compare the thermal energy of the liquids.

16.

Ashton warms a pure, solid substance. He graphs the changes in temperature as shown in the figure below. What is happening as he warms the substance?

a)

molecules move more slowly

b)

molecules move more rapidly

c)

speed of the molecules in not changing

d)

molecules speed up than slow down

17.

Which of these processes is the result of the motion of particles in a gas or liquid?

a)

conduction

b)

convection

c)

insulation

d)

radiation

18.

A toaster warms a bagel for breakfast. What type of thermal energy transfer is occuring?

a)

conduction

b)

convection

c)

radiation

d)

transformation

19.

At room temperature water is a liquid. How could the water be changed to a solid?

a)

add heat

b)

remove heat

c)

decrease density

d)

increase density

20.
Wave with the longest wavelength
a)
microwave
b)
radio
c)
gamma
d)
visible light
21.
EM waves  
a)
Must travel through a vacuum
b)
Can travel through a medium or a vacuum
c)
Are the same type of wave as mechanical waves
d)
Can only travel through a vacuum
22.

Which of these lists the EM waves from Highest to lowest frequency?

a)

Radio - Micro - Gamma - Visible light - UV - Xrays - Infrared - Xrays

b)

Radio - Micro - Infrared - Visible light - UV - X - Gamma waves

c)

Gamma - Xray - UV - Visible light - Infrared - Micro - radio

d)

none

23.
Which color has the least amount of energy?
a)
red
b)
orange
c)
green
d)
blue
24.
How are EM waves different from Mechanical waves?
a)
EM waves need a medium
b)
Mechanical waves need a medium
c)
EM waves can travel through empty space only
d)
Mechanical waves transfer matter
25.
If you see an object as orange,
a)
it is absorbing orange light and reflecting all other colors. 
b)
it is reflecting all colors. 
c)
it is absorbing all colors. 
d)
it is reflecting orange light and absorbing all other colors. 
26.
If you cannot see through an object, in other words, light does not pass through it,  it is 
a)
transparent.
b)
translucent.
c)
opaque.
d)
solid.
27.
This type of material allows most light to pass through but forms a blurry image, like looking through a fogged up window.
a)
opaque
b)
translucent
c)
transparent
d)
echo
28.
A sound wave can travel through a vacuum or empty space.
a)
True
b)
False
29.

Which letter shows a wave being reflected?

a)

A

b)

B

c)

C

30.
The bending of a wave as it travels from one medium to another and as a result changes speed is called
a)
reflection
b)
refraction
c)
diffraction
d)
interference
31.
Sound will usually travel the fastest in a ____________.
a)
vacuum
b)
solid
c)
liquid
d)
gas
32.
Which electromagnetic wave has the shortest wavelength?
a)
radio
b)
gamma
c)
visible
33.
Which of the following forms of electromagnetic radiation has the lowest frequency,longest wavelength, and carries the least amount of energy?
a)
radio
b)
gamma
c)
infrared
d)
visible
34.

Any rock that forms from another rock as a result of changes in heat or pressure (or both) is a:

a)

chemical rock

b)

igneous rock

c)

sedimentary rock

d)

metamorphic rock

35.

Identify two processes labeled in this rock cycle that must occur in order to change any rock into an igneous rock.

a)

heat and/or pressure

b)

weathering and erosion

c)

melting and solidification

d)

deposition and cememtation

36.

Identify two processes required for the formation of a sedimentary rock.

a)

heat and/or pressure

b)

melting and solidification

c)

deposition and cementation

d)

weathering and erosion

37.

What is the correct order (starting from the surface) of Earth’s layers?

a)

crust, outer core, inner core, mantle

b)

mantle, outer core, inner core, crust

c)

crust, mantle, outer core, inner core

d)

outer core, inner core, crust, mantle

38.

In sea-floor spreading, molten material rises from the mantle and erupts

a)

along the edges of all the continents.

b)

along mid-ocean ridges.

c)

in deep-ocean trenches.

d)

at the north and south poles.

39.

A place where two plates slip past each other, moving in opposite directions, is known as a _______

a)

transform boundary

b)

divergent boundary.

c)

convergent boundary.

d)

rift valley.

40.

The place where two plates come together is known as a _______

a)

transform boundary.

b)

divergent boundary.

c)

convergent boundary.

d)

rift valley.

41.

What evidence was NOT used by Wegener as proof of continental drift?

a)

land features

b)

erosion

c)

climate

d)

fossils

42.

According to Wegener's theory of continental drift,

a)

Earth's surface is made up of seven major landmasses

b)

the continents do not drift

c)

Earth is slowly cooling and shrinking

d)

the continents were once joined together in a single landmass and have slowly moved.

43.

Observe this diagram of a plate boundary. One statement BEST describes what is happening. It is that

a)

the oceanic crust is melting.

b)

the denser ceanic crust is subducting under the less dense oceanic crust

c)

volcanic islands are forming.

d)

the tectonic plates are moving away from each other.

44.

The map in the picture shows tectonic plate boundaries. This map would be useful in predicting the location of future

a)

droughts

b)

hurricanes

c)

earthquakes

d)

tornadoes

45.
The image shows the Pacific Ring of Fire, a region of high tectonic activity. What evidence supports the theory that the tectonic activity of the region is due to the subduction of tectonic plates?
a)
The region is bound by many oceanic trenches.
b)
North America seems to be colliding with Asia at the north of the ring.
c)
The Asia-Pacific region is dotted by many small and large islands
d)
The landmasses look like they would fit together like the pieces of a jigsaw puzzle.
46.

What is the source of energy that drives plate movement?

a)

the subducton of the sea floor

b)

the different densities of the oceanic and crustal plates

c)

convection currents in the asthenosphere

d)

the friction force between the plates that move past each other

47.

Which of the following is an advantage to sexual reproduction?

a)

Rapid reproduction of a large amount of offspring

b)

More genetic mutations occur

c)

genetic variation

d)

offspring are identical to parents

48.

Which of the following is NOT a type of ASEXUAL reproduction?

a)

Budding

b)

Regeneration

c)

Vegetative Propogation

d)

Cloning

e)

A flower being pollinated

49.
Sperm and Egg cells are produced using which process?
a)
Mitosis
b)
Meiosis
c)
Binary Fission
d)
None of these
50.
What phase of mitosis is shown here?
a)
Cytokinesis
b)
Interphase
c)
Anaphase
d)
Metaphase
51.
In mitosis, the two resulting cells are...
a)
Different from the starting cell and identical to each other.
b)
Different from the starting cell and different from each other.
c)
Identical to the starting cell and different from each other.
d)
Identical to the starting cell and identical to each other.
52.

Which term means "same alleles"?

a)

heterozygous.

b)

genes.

c)

homozygous.

d)

DNA.

53.

A genotype is

a)

the physical appearance of an organism.

b)

a made up word for genes.

c)

not even a word.

d)

two alleles that an organism possesses.

54.

The mother in generation 1

a)

has the disorder.

b)

is homozygous for the trait.

c)

is a carrier.

55.

Examine the Punnett square below.

Which of the following choices gives the alleles of the parents shown here?

a)

BB and BB

b)

BB and Bb

c)

Bb and Bb

d)

Bb and bb

56.

Look at the diagram below.

Which of these choices should be placed in the box with the question mark?

a)

AA

b)

Aa

c)

aa

d)

Ab

57.

Look at the diagram below.

Which of these statements is correct according to the diagram?

a)

Each offspring has a 25% probability of inheriting the alleles PP

b)

Each offspring has a 25% probability of inheriting the alleles Pp

c)

Each offspring has an equal probability of inheriting the alleles PP or Pp

d)

Each offspring is more likely to inherit pp than any other combination of alleles

58.
What does Darwin's theory of evolution suggest?
a)
species change over time
b)
extinct species are not related to living species
c)
different species can interbreed
d)
animals that look alike are most closely related
59.
Some organisms that share a common ancestor have features that have different functions, but similar structures.  These are known as
a)
vestigial structures
b)
analogous structures
c)
homologous structures
d)
fossil structures
60.
Which is not evidence for evolution?
a)
many animals have homologous structures due to common ancestry
b)
Many animals have vestigial structures from an ancestor
c)
We can observe changes in life forms by observing the fossil record
d)
All of these are evidence for evolution
61.

Yucca flowers are pollinated by yucca moths. The moths lay their eggs in the flowers where the larvae hatch and eat some of the developing seeds. Both species benefit.

a)

commensalism

b)

parasitism

c)

mutualism

62.
A flea feeds on a mouse's blood to the mouse's detriment.
a)
commensalism
b)
parasitism
c)
mutualism
63.

Which of the following is producer/autotroph?

a)

rabbit

b)

frog

c)

tree

d)

worm

64.

Using the food web what would happen if the eagle became extinct?

a)

The frog population would decrease.

b)

The frog population would increase.

c)

The butterfly population would increase.

d)

The snake population would decrease.

65.

The number of organisms at the top of the energy pyramid are usually smaller because the hawk

a)

needs more energy

b)

has more predators

c)

have more offspring

d)

eat producers

66.
Which layer is oldest?
a)
A
b)
W
c)
G
d)
Z
67.

Joe tells Gabby his theory about why sea turtles nest on the beach instead of in the ocean. He says, “The turtle eggs would sink to the bottom of the ocean, and the baby turtle would drown. I know this because my uncle is a fisherman, and he told me this information. Gabby tells Joe that his theory is not scientific. Why does Joe’s idea not meet the requirements to be a scientific theory?

a)

Joe’s idea is already a scientific law.

b)

Joe’s idea is not supported by scientific evidence.

c)

Joe’s idea is a good guess that can be tested by experiments.

d)

Joe and his uncle are not scientists.

68.

In 1897, Joseph Thomson discovered that atoms contained electrons. He proposed a change in the atomic theory of that time, and the theory was modified because of his discovery. Since Thomson’s discovery, atomic theory has been further modified. What is the best explanation for why scientific theories are modified?

a)

Theories more than ten years old are usually out of date.

b)

Scientists want to prove that the work of other scientists is wrong.

c)

New evidence that supports a change prompts scientists to modify earlier theories.

d)

So much information is available today that it is harder to focus research and disprove theories.

69.
Scientific theories are based on
a)
general assumptions of how systems work.
b)
mathematical principles that can be proven true.
c)
large amounts of data collected over time.
d)
observations from within only one scientific discipline.
70.

Lilly was trying to explain to her friend the difference between a theory and a law in science. She used the theory of plate tectonics and the law of superposition as examples. Lilli explained the difference by using non-scientific language. Which statement could Lilly use to correctly describe the difference between a theory and a law in science?

a)

A theory describes a natural event, while a law explains it.

b)

A theory explains a natural event, while a law predicts it.

c)

A theory explains a natural event, while a law describes it.

d)

A theory predicts a natural event, while a law explains it.

Similar Resources on Wayground

Unit 4 - Cycles and Patterns of Earth and the Moon

70 questions

Unit 4 - Cycles and Patterns of Earth and the Moon

quiz

Worksheet

•

6th - 7th Grade

First Semester Review

71 questions

First Semester Review

quiz

Worksheet

•

7th Grade

Science at Work - Chapter 1 - Lvl1

68 questions

Science at Work - Chapter 1 - Lvl1

quiz

Worksheet

•

6th - 12th Grade

Biodiversity & Sustainability

67 questions

Biodiversity & Sustainability

quiz

Worksheet

•

6th - 9th Grade

Grade 9 - The Nervous system

66 questions

Grade 9 - The Nervous system

quiz

Worksheet

•

7th - 9th Grade

Life Science Test Prep

70 questions

Life Science Test Prep

quiz

Worksheet

•

6th - 8th Grade

FOSS Heredity & Adaptation Vocab (All)

72 questions

FOSS Heredity & Adaptation Vocab (All)

quiz

Worksheet

•

6th - 8th Grade

Measuring Mass

65 questions

Measuring Mass

quiz

Worksheet

•

6th - 8th Grade