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

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

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

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

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

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

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

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

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

A) distant plantes
B) the poles of the Earth
C) dead plants and animals
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) the ability to do work
B) the energy of motion
C) energy stored in an object
D) energy from the sun

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