Ok, I'll have one more crack at it before i sleep
One of the definitions was
"Is the material substance of the universe that has mass, occupies space, and is convertible to energy. "
If someone could give me an example of matter turning into energy that could explain energy to me.
But i will take a guess.
A lump of wood is matter, you set it on fire. The fire turns the wood into heat and heat is a form of energy.
Is that right?
If so, can you turn heat back into some kind of matter is is it doomed to stay energy forever?