The Sun can best be described as — A.) an icy planet B.) a ball of superheated gases C.) a cloud of dust D.) a burned-out star L B.) a ball of superheated.

The Sun can best be described as —

A.) an icy planet B.) a ball of superheated gases

C.) a cloud of dust D.) a burned-out star

L

B.) a ball of superheated gas

F

Which two planets are closest to Saturn?

A.) Jupiter & Uranus B.) Venus & Earth

C.) Mars & Mercury D.) Mercury & Neptune

L F

A.) Jupiter & Uranus

The diagram below shows water being heated in a container. What process is taking place?

A.) boiling B.) melting

C.) freezing D.) condensation

L

A.) boiling

F

A piece of solid matter is heated. It is something that cannot burn. What will eventually happen

to this matter if its temperature continues to increase?

A.) It will freeze B.) It will dissolve in water

C.) It will melt D.) It will explode

L

C,) It will melt

F

Which of the following characteristics of Earth is also found on the Moon?

A.) Life-supporting soil B.) Atomosphere

C.) Water D.) Gravity

L

D.) Gravity

F

Which provides an example of thermal energy?

A.) a turkey being roasted in the oven on Thanksgiving B.) a ball falling to the ground

C.) Light from the Sun beingreflected by the Moon

D.) wind blowing a sailboatacross a mountain lake

L

A.) a turkey being roasted in the oven on Thanksgiving

F

Which demonstrates the use of mechanical energy?

A.) An air conditioner coolsa hot apartment in July

B.) A new light bulb makes iteasier to read a night

C.) New speakers make computer games more exciting

D.) Furniture is carried bymovers into a new house

L

D.) Furniture is carried bymovers into a new house

F

Which is the correct order of development for this frog?

A.) 4, 2, 3, 1 B.) 2, 1, 4, 3

C.) 3, 1, 4, 2 D.) 2, 4, 1, 3

L

D.) 2, 4, 1, 3

F

What is the melting point of iceon the Celsius scale?

A.) -32º C B.) 0º C

C.) 32º C D.) 212º C

L

B.) 0º C

F

How do the trees in the rainforest obtain their energy?

A.) By eating other plant life B.) By using energy from the Sun

C.) By drinking water through their roots

D.) By absorbing heat from theforest floor

L

B.) By using energy from the Sun

F

How is coal formed?

A.) People burn wood to makecoal

B.) Farmers use biofuels to produce coal

C.) The soft bodies of ancient seaanimals & plants turn to liquid

D.) The remains of plants in ancientswamps were buried and turned to coal

L

D.) The remains of plants in ancientswamps were buried and turned to coal

F

What causes day and night tooccur on Earth?

A.) The Sun revolves around Earth

B.) The Moon’s shadow causesnight on Earth

C.) Earth rotates on its axisD.) Earth revolves around theSun

L

C.) Earth rotates on its axis

F

Which practice uses a nonrenewablesource of energy?

A.) harvesting trees in arainforest

B.) burning coal to generateelectricity in a power plant

C.) using steam from below Earth’s surface to turn a turbine

D.) building a dam to use falling water to generate electricity

L

B.) burning coal to generateelectricity in a power plant

F

What is the original source of energyin this ecosystem?

A.) grass & twigs B.) the Sun

C.) the burning of fossil fuelsby humans

D.) nutrients in the soil leftby decomposers

L

B.) the Sun

F

Field mice learn some behaviors while interacting with the environment.

Which behavior is most likely learned?

A.) Drinking water B.) Running fast

C.) Avoiding humans D.) Sleeping during the day

L

C.) Avoiding humans

F

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