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