Across
- 3. when an object moves at a distance
- 4. gravitational attraction on an object
- 5. a change of an object to a new substance
- 7. occupies space
- 8. an atom emits protons changing it to another element
- 11. physical combinations
- 14. a chemical bond between 2 or more different elements
- 16. this is added or taken away from an object
Down
- 1. a change but not in an objects identity
- 2. push or a pull
- 6. 2 or atoms of the same element
- 9. building block of matter
- 10. space an object occupies
- 12. an unbalanced atom with a charge
- 13. substance made of only one atom
- 15. quantity of matter
- 17. gives things weight