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