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