ABSTRACT
The universe is believed to be made up of energy and matter.
Light, sound, and heat are examples of energy. Substances like rocks, air, and water – which can be touched or felt – are all examples of
matter.
The universe is believed to be made up of energy and matter.
Light, sound, and heat are examples of energy. Substances like rocks, air, and water – which can be touched or felt – are all examples of
matter.