Across
- 4. chemical symbols and numbers indicating the atoms contained in the basic unit of a substance
- 6. any matter that has a fixed composition and definite properties
- 7. mixing occurs between individual units
- 8. anything that has mass and occupies space.
Down
- 1. substances are not unformly mixed
- 2. a combination of more than one pure substance
- 3. substance that cannot be broken down into simpler substances.
- 4. substance made of atoms of moe then one element bound together.
- 5. smallest particle that properties of an element.
- 8. smallest unit of sustance that exhabits all the properties characteristics.