A) conserve energy B) do work C) fly D) eat
A) sound B) light C) heat D) inertia
A) a factory B) a fire C) the sun D) the moon
A) rocks and dirt B) life on Earth C) water and oxygen D) stars and planets
A) wings B) energy C) an engine D) wheels
A) magnetic energy B) sound energy C) nuclear energy D) solar energy
A) water B) leaves C) soil D) food
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) power plants B) dead plants and animals C) the poles of the Earth D) distant plantes
A) energy stored in an object B) the energy of motion C) energy fromthe sun D) the ability to do work
A) the energy of motion B) energy from the sun C) the ability to do work D) energy stored in an object
A) the ability to do work B) the energy of motion C) energy from the sun D) energy stored in an object
A) energy fromt he sun B) energy stored in an object C) the energy of motion D) heat energy |