A) do work
B) fly
C) eat
D) conserve energy

A) heat
B) light
C) inertia
D) sound

A) the moon
B) a fire
C) a factory
D) the sun

A) stars and planets
B) life on Earth
C) rocks and dirt
D) water and oxygen

A) wheels
B) an engine
C) energy
D) wings

A) nuclear energy
B) solar energy
C) magnetic energy
D) sound energy

A) leaves
B) food
C) soil
D) water

A) heat from an oven
B) a magnet
C) the sun
D) energy in food

A) a radio
B) a fire
C) a magnet
D) the sun

A) the poles of the Earth
B) distant plantes
C) dead plants and animals
D) power plants

A) energy fromthe sun
B) the ability to do work
C) energy stored in an object
D) the energy of motion

A) energy from the sun
B) the energy of motion
C) the ability to do work
D) energy stored in an object

A) energy stored in an object
B) the energy of motion
C) the ability to do work
D) energy from the sun

A) the energy of motion
B) energy fromt he sun
C) energy stored in an object
D) heat energy