Matter is the physical material of the universe. It is the â€œstuffâ€ all around you.
The â€œstuffâ€ in the world can be roughly divided into matter and energy. Matter has mass and exhibits gravimetric properties — it â€œdentsâ€ or â€œwarpsâ€ spacetime in proportion to its mass.
Matter is everything around you.
Matter is anything made of atoms and molecules.
Matter is anything that has mass (weight) and volume (takes up space).
Matter is everything and anything that is not energy, space, or time. Matter makes up everything from the mountains to the oceans to the human body. The things that are not matter are :
Energy – electromagnetism, light, heat
Space – the area matter and energy exist in, like the area between two walls or between stars
Time – the progressive activities of things as they happen.