Across
- 2. how much it used gravity
- 3. to or more elements combinding
- 4. to mix
- 5. a basic unit that everything is made
- 7. how much the matter takes up
- 11. look at something without change
- 12. how easy it is that a thing changes
- 14. a fancy word for toxicity
- 15. the name of two atoms
Down
- 1. when you hit something and it reacts
- 6. a single kind matter that has makeup
- 8. the amount of matter in a object
- 9. the basic unit of life
- 10. the scientific word for stuff
- 13. One type of atom