Mass: amount of matter in an object.
Volume: the amount of space an objects takes up.
Density: the amount of mass in a certein volume of material.
Physical Property: a property that can be observed without changing the identity of a substance.
Physical Change: a change in size, shape, or state without forming a new substance.
Solution: a mixture of one substance dissolved in another so that the properties ate the same throughout.
Chemical Change: a change in matter that produces a new substance with different properties from the original.
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