Across
- 1. substance which expands freely to fill any space available
- 5. neutral group of two or more atoms held together by chemical bonds
- 6. a substance made by mixing other substances
- 9. originating outside the organism.
- 10. substance that flows freely but is of constant volume
- 11. firm and stable in shape
Down
- 2. smallest constituent unit of ordinary matter
- 3. the ability of a substance to dissolve
- 4. identification of the substances of which matter is composed
- 7. also known as a pure substance
- 8. homogenous type of mixture
- 9. of the same kind