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

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

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

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

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

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

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

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

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

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

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

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

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

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