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