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