Across
- 1. hot things rise, cold things fall
- 4. a substance that transfers energy
- 7. energy of things actively in motion
- 11. a change in appearance
- 13. reaction that releases energy
- 17. the measure of average kinetic energy
- 21. energy cannot be created nor destroyed
- 22. the transfer of thermal energy between objects
- 25. speeds up reaction
- 26. energy cannot be created nor destroyed
- 27. when 2 molecules react and bond
- 28. energy that comes from heat
- 29. a change in the substance
- 30. energy stored in something based on height
Down
- 2. a chemical reaction that absorbs energy
- 3. amount of heat energy required to raise the temp of a substance
- 5. the minimum amount of energy needed to start a reaction
- 6. everything has it
- 8. biological substance that acts like a catalyst
- 9. a substance or material that decreases rate of reaction
- 10. pre reaction
- 12. energy moves between 2 objects
- 14. total energy of motion
- 15. oxygen can enter and leave
- 16. post reaction
- 18. a substance that helps a substance resist ph change
- 19. amount of energy stored in things
- 20. emissions of energy
- 23. oxygen cannot enter nor leave
- 24. how fast a reaction is