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