Across
- 2. exotic state of matter that is super ionised gas (think - the sun)
- 6. the the movement of molecules from an area of high concentration to an area of low concentration until they are evenly spread
- 7. A colection of atoms making more complex substances
- 8. When something can be changed back to the was it was previously
Down
- 1. a small, useless, fuzzy animal that people look after put in cages
- 3. The building blocks of all matter
- 4. state of matter that is rigid and keeps its shape
- 5. A substance that is made from just one type of atom
- 6. the measure of how much matter is packed into a given volume