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

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

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

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

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

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

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

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

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

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

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

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

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

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