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