Across
- 2. four important elements
- 4. one element takes
- 5. pure substances
- 8. molecules w/diff elements
- 9. takes up space and has mass
- 10. ability to do work
- 11. energy of motion
Down
- 1. stored energy
- 3. one or more elements
- 6. polar share equally
- 7. share unequally
- 8. they share