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