In general, matter is anything that has mass and occupies space . That is a simplistic definition,but it is a great place to start in understanding the world aroundyou.
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The "stuff" in the world can be roughly divided into "matter"and "energy" for starters, and you can begin investigating matterright there. Matter, which has mass, exhibits gravimetricproperties; it "dents" or "warps" spacetime in proportion to itsmass. .
Matter is everything around you. .
Matter is anything made of atoms and molecules. .
Matter is anything that has a '''mass, weight, volume, or takesup space. .
In addition, it is everything and anything that is not time,energy, or space. Matter makes up everything from the mountains tothe oceans to your fingernail and brain. The only things that arenot matter are these: space is what matter exists in, like the areabetween two walls to put it simply, and example of energy would belight or heat and time is an invention of man to track things thathappen in space. .
Matter is a solid form of energy as expressed in Einstein'sequation E=MC2. ( Full Answer )