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Science 7 Review

Total questions: 75

Worksheet time: 38mins

Name
Class
Date
1.

Which type of rock is made by small bits of rock, mud, or sand compacted and cemented together?

a)

Coal

b)

Igneous

c)

Metamorphic

d)

Sedimentary

2.

Which type of rock is made from lava or magma cooling?

a)

Igneous

b)

Sedimentary

c)

Metamorphic

3.

Which type of rock is made from a rock being changed by heat and pressure?

a)

Smooshed Rock

b)

Igneous

c)

Metamorphic

d)

Sedimentary

4.

True or False: Once a rock is Sedimentary, it cannot become an Igneous rock.

a)

True

b)

False

5.

The process when rocks break into smaller pieces due to exposure to natural elements is called?

a)

erosion

b)

weathering

c)

sediments

6.

What are the 3 major types of rocks?

a)

Igneous, Metamorphic, Sedimentary

b)

Metamorphic, Igneous, Cementation

c)

magma, lava, crystals

7.

Which sedimentary rock has a fine-grained texture?

a)

1

b)

2

c)

3

d)

4

8.

This image represents what type of boundary?

a)

Divergent

b)

Transform

c)

Convergent

d)

Subduction

9.

At a divergent boundary, tectonic plates move in what way?

a)

Tectonic plates move towards each other.

b)

Tectonic plates slide past each other.

c)

Tectonic plates move up and down.

d)

Tectonic plates move away from each other.

10.

A land feature that is produced at a convergent boundary is?

a)

a valley

b)

an ocean

c)

a canyon

d)

a volcano

11.

Name the boundary

a)

Convergent

b)

Transform

c)

Divergent

d)

Subduction

12.

Which Earth layer is #1?

a)

Crust

b)

Mantle

c)

Outer core

d)

Inner core

13.

Which Earth layer is #2?

a)

Crust

b)

Mantle

c)

Outer core

d)

Inner core

14.

Which Earth layer is #3?

a)

Crust

b)

Mantle

c)

Outer core

d)

Inner core

15.

Which Earth layer is #4?

a)

Crust

b)

Mantle

c)

Outer core

d)

Inner core

16.

Using this diagram, which letter identifies the layer scientists believe to be in a liquid state?

a)

A

b)

B

c)

C

d)

D

17.

Which layer of Earth is located above the outer core?

a)

Crust

b)

Inner core

c)

Mantle

d)

Lithosphere

18.

Which is the thickest layer of Earth?

a)

Crust

b)

Mantle

c)

Outer core

d)

Inner core

19.

Which is the thinnest layer of Earth?

a)

Crust

b)

Mantle

c)

Outer core

d)

Inner core

20.

Which layer contains the oldest fossil?

a)

Layer 1

b)

Layer 2

c)

Layer 3

d)

Layer 4

21.

Which layer contains the youngest fossil?

a)

Layer 1

b)

Layer 2

c)

Layer 3

d)

Layer 4

22.

What is a likely event that occurred between fossil layers B and D?

a)

explosion of new species

b)

mass extinction

c)

can not tell from the image

d)

small changes to the environment

23.

Which of the following is NOT a possible explanation for the 5 mass extinctions in Earth's history

a)

major climate changes

b)

increase in volcanic activity

c)

artificial selection

d)

asteroid impact

24.

This is a picture of a ...

a)

A food web

b)

A food chain

c)

A biome

d)

A biosphere

25.

In a food web the arrow always points to

a)

the consumer

b)

the prey

c)

the producer

d)

the autotroph

26.

Using this food web, which of the following is producer/autotroph?

a)

rabbit

b)

frog

c)

tree

d)

worm

27.

Using this food web, which of the following is a primary consumer?

a)

butterfly

b)

snake

c)

fox

d)

frog

28.

Using this food web, which of the following is a secondary consumer?

a)

snake

b)

worm

c)

butterfly

d)

squirrel

29.

Using this food web, which of the following is a tertiary consumer?

a)

frog

b)

bird

c)

eagle

d)

worm

30.

Using this 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.

31.

The number of organisms at the top of the energy pyramid are usually a smaller number of individuals because ...

a)

they need more energy

b)

they have more predators

c)

they have more offspring

d)

they eat producers

32.

What % of energy is passed from organism to organism?

a)

100%

b)

10%

c)

5%

d)

25%

33.

A biome is ...

a)

a large geographic areas with similar climates and ecosystem.

b)

a smaller part of the biosphere consisting of the organisms and non-living features that interact in an area.

c)

the variety of organisms in an ecosystem.

d)

an area of the Earth where life exists.

34.

Which two animals below are primary consumers?

a)

ant and moth

b)

mushroom and moth

c)

ant and hawk

d)

spider and mouse

35.

Which of the following is a tertiary consumer?

a)

hawk

b)

mouse

c)

moth

d)

spider

36.

What is a producer?

a)

An organism that creates their own food.

b)

An organism that eats other organisms for energy.

c)

An organism that eats other dead organisms.

37.

What is a consumer?

a)

An organism that creates their own food.

b)

An organism that eats other organisms for energy.

c)

An organism that eats other dead organisms.

38.

What is a decomposer?

a)

An organism that creates their own food.

b)

An organism that eats other organisms for energy.

c)

An organism that eats other dead organisms.

39.
What do Omnivores eat? 
a)
Plants ONLY 
b)
Animals ONLY
c)
Plants AND Animals
40.
What do Herbivores eat? 
a)
Plants ONLY 
b)
Animals ONLY
c)
Plants AND Animals
41.
What do Carnivores eat? 
a)
Plants ONLY 
b)
Animals ONLY
c)
Plants AND Animals
42.

What animal is on the top of this food chain?

a)

Grass

b)

Grasshopper

c)

Mouse

d)

Owl

43.

Who does the owl get energy from?

a)

Grass

b)

Grasshopper

c)

Mouse

d)

Owl

44.

Who does the grasshopper get energy from?

a)

Grass

b)

Grasshopper

c)

Mouse

d)

Owl

45.

Who is the producer in this food chain?

a)

Grass

b)

Grasshopper

c)

Mouse

d)

Owl

46.

Why is photosynthesis important?

a)

Creates oxygen for animals to breath.

b)

Creates energy for heterotrophs to use.

c)

Creates food for plants to use.

d)

All of these are correct

47.

Why do plants go through photosynthesis?

a)

To make food for us.

b)

To make food for themselves.

c)

They're bored and have nothing else to do.

48.
The main source of energy for all life comes from ____.
a)
the Earth
b)
the moon
c)
the sun
d)
the food we eat/make
49.
What are the states of matter?
a)
Solid, Liquid, Water
b)
Solid, Liquid, Gas
c)
Melting, Freezing, Condensing, Evaporating
d)
Water and Liquid
50.

What is a molecule?

a)

Two or more atoms bonded together.

b)

One element

c)

One atom

d)

Solid, Liquid, Gas

51.

What does this image represent?

a)

Atom

b)

Element

c)

Molecule

52.
What is the smallest particle?
a)
Element
b)
Molecule
c)
Atom
d)
Plasma
53.
What is main reason for phase changing of states of matter?
a)
Color
b)
Elements
c)
Temperature
d)
Water
54.
H2O2← ?
This number tells the number of atoms present.
a)
coefficient
b)
molecule
c)
subscript
d)
atom
55.
What are the basic building blocks for all matter?
a)
atoms
b)
elements
c)
compounds
d)
chemicals
56.

The atomic number is the same as the number of:

a)

protons

b)

electrons

c)

protons and neutrons

d)

electron shells

57.
A subatomic particle that has a positive electric charge
a)
Proton
b)
Neutron
c)
Electron
d)
Isotope
58.
What is a valence electron?
a)
The sum of neutrons and protons.
b)
The # of electrons in the last shell.
c)
A type of bond.
d)
A popular compound.
59.

How many valence electrons does Hydrogen have?

a)

4

b)

3

c)

2

d)

1

60.

How many valence electrons does Oxygen have?

a)

2

b)

3

c)

6

d)

4

61.

Anything that takes up space.

a)

matter

b)

volume

c)

mass

62.

The amount of space that matter takes up.

a)

matter

b)

volume

c)

mass

63.

The amount of matter in an object.

a)

matter

b)

volume

c)

mass

64.

How might temperature changes affect a glass of iced tea?

a)

Making it warmer could cause the ice cubes to melt.

b)

Making it colder could cause the ice cubes to melt.

c)

Making it much warmer could cause the liquid to freeze.

65.

Your mom is boiling water for spaghetti. What state of matter is the water when she puts the pot on the stove?

a)

gas

b)

liquid

c)

solid

66.

The water begins to get hot and bubbles appear. Steam forms above the pot. What state of matter is the steam?

a)

solid

b)

liquid

c)

gas

67.

The steam makes your mom’s kitchen window look cloudy. What is happening?

a)

evaportation

b)

solid

c)

condensation

68.

The steam makes your mom’s kitchen window look cloudy. Why?

a)

It is turning from a gas back to a liquid.

b)

It is turning from a liquid to a solid.

c)

It is turning from a liquid to a gas.

69.

Waves show us ...

a)

mass

b)

matter

c)

energy

d)

water

70.
Which wave has a greater frequency?
a)
wave B
b)
wave C
71.
Which wave has the most energy?
a)
top wave
b)
bottom wave
72.
What part of the wave is shown at letter A?
a)
crest
b)
trough
c)
wavelength
d)
frequency
73.

Which part of the wave is shown at letter B?

a)

crest

b)

trough

c)

wavelength

d)

resting point

74.
Which part of the wave is shown at letter C?
a)
crest
b)
wavelength
c)
resting point
d)
amplitude
75.
Which part of the wave is shown at letter D?
a)
trough
b)
resting point
c)
wavelength
d)
frequency

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