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

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

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

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

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

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

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

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

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

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

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

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

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

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