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