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

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

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

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

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

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

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

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

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

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

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

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

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

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