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

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

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

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

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

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

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

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

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

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

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

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