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Any substance that has mass and occupies a volume.
Any substance that has mass and occupies a volume. Matter can exist as solid, liquid, or gas, and is made up of extremely small particles that we can't see. At the most fundamental level, matter seems to consist of indivisible particles such as electrons.
Matter can exist as solid, liquid, or gas, and is made up of extremely small particles that we can't see. At the most fundamental level, matter seems to consist of indivisible particles such as electrons.