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