sábado, 12 de marzo de 2011

Vocabulary 1 - Physical Properties

1. Matter: any solid, liquid or gas.

2. Mass: amount of matter in an object.


3. volume: the amount of space an object takes up.


4. Density: the amount of mass in a certain volume of material.

5. Physical Property: a property that can be observed without changing the the identidy of a substance.

6.  Physical Change: a change in size, shape, or state without forming a new substance.

7. Solution: a mixture of one substance dissolved in another so that the properties are the same throughout.

8. Chemical change: a change in matter that produce a new substance withh different properties of the original.

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