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

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

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

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

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

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

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

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

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

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

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

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

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

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