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