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6th Grade Science: Year in Review

Total questions: 110

Worksheet time: 1hrs 14mins

Name
Class
Date
1.

Fuels like coal, oil, and natural gas are made from the remains of ancient living things. What are these fuels called?

a)

Renewable energy

b)

Nuclear energy

c)

Fossil fuels

d)

Geothermal energy

2.

According to the law of conservation of energy, what happens to energy?

a)

It is created and destroyed

b)

It is conserved

c)

It is transformed into matter

d)

It is converted into light

3.

Fuels like coal, oil, and natural gas are made from the remains of ancient living things. What are these fuels called?

a)

Renewable energy

b)

Nuclear energy

c)

Fossil fuels

d)

Geothermal energy

4.

According to the law of conservation of energy, what happens to energy?

a)

It is created and destroyed

b)

It is conserved

c)

It is transformed into matter

d)

It is converted into light

5.

Which of the following is considered a safer source of energy?

a)

Coal

b)

Oil

c)

Solar energy

d)

Natural gas

6.

What happens to energy according to the principle of conservation?

a)

It is created and destroyed

b)

It is conserved

c)

It is transformed into matter

d)

It is converted into light

7.

Most power plants in the United States burn this fossil fuel to generate electricity.

a)

Coal

b)

Oil

c)

Natural gas

d)

Geothermal energy

8.

What device transforms the potential energy of water into electrical energy?

a)

Windmill

b)

Solar panel

c)

Hydroelectric dam

d)

Nuclear reactor

9.

Which of the following is an energy resource that is replenished continually?

a)

Coal

b)

Oil

c)

Solar energy

d)

Natural gas

10.

What does a windmill convert the kinetic energy of wind into?

a)

Heat energy

b)

Mechanical energy

c)

Electrical energy

d)

Chemical energy

11.

What are the 'factories' that provide the electricity we use in our everyday life called?

a)

Power plants

b)

Windmills

c)

Solar panels

d)

Hydroelectric dams

12.

What kind of energy does the sun transform into thermal and radiant energy?

a)

Nuclear energy

b)

Electrical energy

c)

Kinetic energy

d)

Potential energy

13.

What device transforms radiant energy directly into electrical energy?

a)

Windmill

b)

Solar panel

c)

Hydroelectric dam

d)

Nuclear reactor

14.

What is the process of transforming the potential energy of water that is trapped behind a dam called?

a)

Nuclear energy

b)

Photosynthesis

c)

Conduction

d)

Hydroelectric power

15.

What device with narrowly spaced fan blades turns the generator in power plants?

a)

Windmill

b)

Solar panel

c)

Hydroelectric dam

d)

Turbine

16.

Which of the following energy resources are used up much faster than they can be replaced? (select all that apply)

a)

Coal

b)

Oil

c)

Solar energy

d)

Natural gas

17.

What is the process of using the sun's energy directly through thermal or photovoltaic panels called?

a)

Hydro-electricity

b)

Nuclear Energy

c)

Solar power

d)

Fossil fuels

18.

Resources that are used faster than they can be replaced by natural processes

a)

Nonrenewable Resources

b)

Renewable Resources

19.

___________________ are fuels made from the remains of ancient organisms.

a)

fossil fuels

b)

waste energy

c)

renewable energy

d)

nuclear energy

20.

Which one of these is not a fossil fuel?

a)

coal

b)

oil

c)

natural gas

d)

nuclear energy

21.

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

22.

Plants turn_______ energy into _______ energy for food.

a)

thermal, mechanical

b)

radiant, chemical

c)

electromagnetic, light

d)

potential, kinetic

23.
What does the Law of Conservation of Energy state?
a)
That energy is the movement of electrons within an atom.
b)
That energy is a means to an end.
c)
That energy can be created when needed.
d)
That energy cannot be created or destroyed.
24.

Which energy transformation below occurs in a blow dryer?

a)

electrical ----> thermal

b)

electrical -----> chemical

c)

chemical -----> thermal

d)

thermal ------> electrical

25.
Can you create energy?
a)
Yes
b)
No
26.

Light energy is also known as

a)

radiant energy

b)

thermal energy

c)

heat energy

d)

nuclear energy

27.

Most of the world's energy is solar. Solar energy is energy from the

a)

Earth

b)

Solar panels

c)

Sun

d)

Moon

28.

What is the source of almost all energy on Earth?

a)

the Sun

b)

Earth's hot core

c)

moving water

d)

stored carbon

29.

What types of energy are produced when a light bulb is in a complete circuit?

a)

thermal and light

b)

magnetism and sound

c)

sound and thermal

d)

light and magnetism

30.

What energy transformations take place in a kitchen toaster?

a)

heat to mechanical

b)

electrical to heat

c)

heat to chemical

d)

electrical to chemical

31.

An electric current flowing in one direction only:

a)

voltage

b)

parallel current

c)

direct current

d)

electric current

32.

An electric current that moves back and forth in a circuit

a)

alternating current

b)

direct current

c)

parallel current

d)

electric current

33.

Diagram shows the flow of:

a)

Alternating Current

b)

Direct Current

c)

Floating Current

d)

Fluctuating Current

34.

Diagram shows the flow of:

a)

Alternating Current

b)

Direct Current

c)

Floating Current

d)

Fluctuating Current

35.

What is an object that allows electrical current to flow through it?

a)

Conductors

b)

Circuits

c)

Nonconductors

d)

Batteries

36.
If I remove a lightbulb in a series circuit, what will happen?
a)
The lights will get brighter.
b)
The lights will get dimmer.
c)
The circuit will stay the same.
d)
All of the lights will go out.
37.

Electric current can flow only through a circuit that is ________.

a)

open

b)

diagrammed

c)

closed

d)

positive

38.

Wires are often made of copper because copper __________.

a)

is a filament

b)

has high resistance

c)

is a good conductor

d)

uses fewer watts

39.

Many wires are covered with rubber or plastic because these materials are ___________.

a)

good conductors

b)

grounded

c)

good insulators

d)

negatively charged

40.

A unit that measures the force of a current is called ______

a)

ampere

b)

volt

c)

watt

d)

ohm

41.

What type of circuit is this?

a)

Series

b)

Consecutive

c)

Parallel

d)

Training

42.

What type of circuit is this?

a)

Series

b)

Consecutive

c)

Parallel

d)

Training

43.

Which way do electrons flow?

a)

Positive to negative

b)

Negative to positive

c)

Negative to negative

d)

Positive to positive

44.

Energy transformations occur when...

a)

Energy is created through conduction

b)

Energy changes from one form to another

c)

Two forces slide together that are touching

d)

A chemical reaction takes place

45.

What does the Law of Conservation of Energy state?

a)

Energy is the movement of electrons within an atom.

b)

Energy is a means to an end.

c)

Energy can be created when needed.

d)

Energy cannot be created or destroyed.

46.

What is Energy?

a)

The ability to do anything

b)

The ability to cause change

c)

The study of nature

d)

A fact of life

47.

Energy cannot be created or destroyed.

a)

True

b)

False

48.

Energy transformations occur when...

a)

Energy is created through conduction

b)

Energy changes from one form to another

c)

Two forces slide together that are touching

d)

A chemical reaction takes place

49.

Where does the energy needed for the water cycle to occur, come from?

a)

The Moon

b)

The Sun

c)

Producers

d)

Omnivores

50.

Where does the energy needed for the water cycle to occur, come from?

a)

The Moon

b)

The Sun

c)

Producers

d)

Omnivores

51.
Forms of precipitation are-
a)
only sleet and snow
b)
rain, sleet, hail, and snow
c)
only dew and rain 
d)
only snow and rain
52.

What percentage of Earth's fresh water that is not frozen

a)

97%

b)

1%

c)

100%

d)

3%

53.

hydrosphere

a)

all the water on Earth

b)

regions that contain all the living things on Earth

c)

the envelope of gases that surrounds Earth

d)

living things on land

54.

____ happens when liquid turns into a gas on Earth's surface

a)

evaporation

b)

condensation

c)

respiration

d)

transpiration

55.

clouds

a)

water storage areas during the water cycle

b)

places reserved for water usage by humans and animals

c)

made from water and ice that are too big to remain suspended in the air

d)

made up of water droplets or ice crystals that are so small they remain suspended in the air

56.

Evaporation adds water to the

a)

biosphere

b)

atmosphere

c)

lithosphere

d)

geosphere

57.
What part of the water cycle does this picture show?
a)
condensation
b)
precipitation
c)
evaporation
58.
What part of the water cycle does this picture show?
a)
condensation
b)
precipitation
c)
evaporation
59.
What is condensation?
a)
The part of the water cycle when the sun heats up water, turning it from a liquid into water vapor or steam. It rises from the ground into the air.
b)
The part of the water cycle when the water vapor in the air gets cold. The water turns back into a liquid and forms clouds.
c)
The part of the water cycle when clouds get heavy and can no longer hold the liquid water. This causes the water to fall from the sky to the earth as rain, snow, sleet, or hail.
60.
What is evaporation?
a)
The part of the water cycle when the sun heats up water, turning it from a liquid into water vapor or steam. It rises from the ground into the air.
b)
The part of the water cycle when the water vapor in the air gets cold. The water turns back into a liquid and forms clouds.
c)
The part of the water cycle when clouds get heavy and can no longer hold the liquid water. This causes the water to fall from the sky to the earth as rain, snow, sleet, or hail.
61.
What is precipitation?
a)
The part of the water cycle when the sun heats up water, turning it from a liquid into water vapor or steam. It rises from the ground into the air.
b)
The part of the water cycle when the water vapor in the air gets cold. The water turns back into a liquid and forms clouds.
c)
The part of the water cycle when clouds get heavy and can no longer hold the liquid water. This causes the water to fall from the sky to the earth as rain, snow, sleet, or hail.
62.
Which best explains why runoff is important?
a)
It returns water to other locations on Earth
b)
It increases the chance of flooding
c)
It makes evaporation occur faster
d)
It increases condensation
63.
How much of our planet's water is saltwater?
a)
75%
b)
1%
c)
99%
d)
97%
64.
When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.
a)
Water
b)
Atmosphere
c)
Sun
d)
Air
65.

Where does SOIL get its carbon from?

a)

The sky

b)

The sun

c)

Dead animals and plants

d)

Worms

66.

Where does a TREE get its carbon from?

a)

The sky

b)

The sun

c)

Dead animals and plants

d)

Worms

67.

Where does the SKY get its carbon from?

a)

The sun

b)

Animals breathing

c)

Water

d)

The sun

68.

Where do ANIMALS get their carbon from?

a)

The sun

b)

Other animals breathing

c)

The dirt

d)

Their food

69.

Label the following Carbon cycle.

a)sunlight
b)photosynthesis
c)animals breathing (respiration)
d)fossil fuels
1
2
3
4
1)
2)
3)
4)
70.

Label the following Carbon cycle.

a)dead animals
b)factory emmisions
1
2
1)
2)
71.
Organism that breaks down dead plants & animals and releases nitrogen back into atmosphere
a)
bacteria
b)
plants
c)
animals
d)
producers
72.
Gas that makes up almost 80% of Earth's atmosphere
a)
oxygen
b)
carbon dioxide
c)
nitrogen
d)
hydrogen
73.

The constant movement of nitrogen through the biotic & abiotic parts of an ecosystem is known as the ______.

a)

water cycle

b)

nitrogen cycle

c)

carbon cycle

d)

life cycle

74.

True or False...Bacteria play a very important role in the nitrogen cycle.

a)

True

b)

False

75.

True or False...The nitrogen in the atmosphere is in a usable form and can be absorbed by living things.

a)

True

b)

False

76.

What percent of the atmosphere is composed of nitrogen?

a)

1%

b)

21%

c)

78%

d)

100%

77.
When two magnets have the same poles facing each other they will?
a)
attract
b)
repel
c)
attack one another
d)
spin
78.
Iron, Nickel and cobalt are all __________________ materials
a)
Shiny
b)
poles
c)
magnetic
d)
cold
79.

The area around a magnet in which magnetic forces can act is called what?

a)

Motor

b)

Magnetic Field

c)

Magnet

d)

Magnetic Poles

80.
What will happen when these magnets are brought close together?
a)
They will attract each other.
b)
They will repel each other.
c)
Both magnets will turn to the left
d)
Both magnets will turn to the right
81.
Magnets have a north and a south
(a)  
Choose from the below words
pole
shape
color
region
82.

Iron, Nickel and cobalt are all​ (a)   ​​ ​ ​ ​ ​ ​ materials​ ​

Choose from the below words
magnetic
Shiny
poles
cold
83.

Where on a magnet is the magnetic force the strongest?

a)

at the poles

b)

in the middle

c)

above the magnet

d)

below the magnet

84.

What is the definition of magnetism?

a)

A force that repels or attracts objects that are magnetic.

b)

Any and all things that have mass and take up space.

c)

using the five senses to describe matter.

d)
The science of matter and energy and their interactions
85.
What do the lines around this magnet represent?
a)
North Pole
b)
South Pole
c)
Magnetic Declination
d)
Magnetic Field
86.
If you cut a magnet in half, what happens to the poles?
a)
One half gets the North Pole, the other half gets the South Pole
b)
Both halves get only a North Pole
c)
Both halves get only a South Pole
d)
Both halves get a North pole and a South Pole
87.

A compass points toward the south pole of Earth's magnetic field, located near the Earth's geographical ________.

a)

north

b)

south

c)

east

d)

west

88.

Every magnet has both a _________ pole and a __________ pole.

a)

North, South

b)

East, West

c)

Positive, Negative

d)

Positive, South

89.
A Magnet can be used to create electricity
a)
True
b)
False
90.

The red needle always points north because

a)

The North Pole is the Magnetic North Pole, like poles attract

b)

The North Pole is the Magnetic South Pole, opposites attract

91.

This image shows

a)

an attracting force

b)

a repelling force

c)

no force

92.
The relationship between electricity and magnetism is called
a)
electrical energy.
b)
induced current.
c)
electromagnetism.
d)
ferromagnetism.
93.
This is a picture of a simple electromagnet. How can the electromagnet be made stronger?
a)
Add more coils of wire to the nail.
b)
Use a smaller battery.
c)
Reverse the poles of the magnet.
d)
Remove all the coils and the nail.
94.
Surrounding every magnet is a(n) __________  __________.
a)
magnetic field
b)
electrical current
c)
smaller magnet
d)
funny saying
95.
What kind of magnet can be turned on and off?
a)
a refrigerator magnet
b)
an electromagnet
c)
magnetite
d)
iron
96.
When two magnetic South poles are brought close to each other, they will
a)
attract
b)
repel
c)
create sparks
d)
cancel each other out
97.
When a magnetic South pole is brought close to a magnetic North pole, the magnets will
a)
attract
b)
repel
c)
create sparks
d)
cancel each other out
98.

Which of the following is not a good conductor?

a)

Copper

b)

Silver

c)

Aluminium

d)

Plastic

99.
A compass needle responds to a magnetic field, because the compass needle is a
a)
A. generator.
b)
B. motor.   
c)
C. magnet.
d)
D. transformer.
100.

The picture above is an example of what?

a)

Magnetic field

b)

Electric field

c)

Repulsion

d)

Attraction

101.

What would happen with the magnets in the picture above?

a)

They would repel

b)

Nothing

c)

They would attract

d)

They would repel and then attract

102.
The ability of some materials to attract certain metals is called
a)
Electricity
b)
Magnetism
c)
Electromagnetism
d)
Atoms
103.

A generator is a machine that transforms ____________ energy to ______________ energy.

a)

Electrical to Kinetic

b)

Kinetic to Electrical

c)

Radiant to Kinetic

d)

Kinetic to Thermal

104.

A simple electrical motor converts ______________ energy to ____________ energy. 

a)

Magnetic to Electrical

b)

Electrical to Magnetic

c)

Electrical to Kinetic

d)

Kinetic to Electrical

105.
The process of creating a current in a circuit by changing a magnetic field
a)
A. electric generator
b)
B. electric motor
c)
C. electromagnetic induction
d)
D. magnet
106.
What is created when a magnet moves through a coil of wire?
a)
A. an electromagnet
b)
B. a ferromagnet
c)
C. a solenoid
d)
D. an electric current
107.

The area around a magnet is called the .....

a)

attraction zone

b)

work area

c)

magnetic field

d)

hot zone

108.
Electromagnetism is when
a)
magnetism causes electricity
b)
electricity causes magnetism
c)
electricity and magnetism cancel each other out
d)
a strong magnet creates a permanent magnet
109.
The voltmeter is at 0 in this image. How would you manipulate the experiment to create electricity (measured in volts)?
a)
Flip the magnet around so the North pole is facing out
b)
Move the magnet back and forth
c)
Take the magnet out
d)
Add more coils around the paper cylinder
110.
How could the experimenter increase the amount of electricity being induced by this experiment?
a)
Increase the number of coils
b)
Decrease the number of coils
c)
Flip the magnet around
d)
Nothing, the amount of electricity cannot be increased

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