Across
- 3. force with which gravity pulls on a quantity of matter
- 5. a substance made of atoms of more than one element bound together
- 6. a substance that cannot be broken down into simpler substances
- 8. any matter that has a fixed composition
- 9. measure of space
Down
- 1. a combination of more than one pure substance
- 2. the smallest particle that has properties of an element
- 4. the smallest unit of a substance
- 7. anything that has mass and occupies space
- 10. a measure of the quantity of matter in an object