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

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

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

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

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

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

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

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

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

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

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) the energy of motion
C) energy stored in an object
D) the ability to do work

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

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