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