Year 10 Chemistry

2. A substance made by mixing other substances together.
4. The degree or intensity of heat present in a substance or object.
7. The formation of a solid in a solution or inside another solid during a chemical reaction or by diffusion in a solid.
10. A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
11. A table of the chemical elements arranged in order of atomic number.
12. A measure, quantity, or frequency, typically one measured against some other quantity or measure.
13. The condition of being protected from or unlikely to cause danger, risk, or injury.

1. A substance that takes part in and undergoes change during a reaction.
3. A minute portion of matter.
5. An apparent displacement or difference in the apparent position of an object viewed along two different lines of sight.
6. A substance produced during a natural, chemical, or manufacturing process.
8. The continuous physical force exerted on or against an object by something in contact with it.
9. Approximately equivalent to the number of protons and neutrons in the atom.