Across
- 2. gravitational force on an object
- 4. amount of space something takes up
- 5. amount of matter something has
- 6. two or more atoms chemically combined
- 8. everything in the universe
Down
- 1. building block of all matter
- 3. substance made of one type of atom
- 6. two or more atoms not chemically combined
- 7. new substance has new properties
- 9. an example of non matter