Across
- 5. main way that heat travels through liquids and gases
- 7. area x pressure
- 10. metric unit of weight
- 13. measures voltage
- 15. no charge
- 16. measure in hotness and coldness
- 19. mass x gravity
- 20. number of protons
Down
- 1. mass/volume
- 2. circles in an atomic model
- 3. transfer of energy by contact
- 4. —|—-|-
- 6. concentration of a force
- 8. column of chemical elements
- 9. transfer of heat by electromagnetic waves
- 11. substances in the periodic table
- 12. positive electric charge
- 14. negative electric charge
- 17. row of chemical elements
- 18. force/pressure