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

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

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

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

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

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

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

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

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

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

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

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