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

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

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

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

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

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

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

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

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

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

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

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

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

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