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

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

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

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

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

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

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

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

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

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

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

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