Across
- 1. bacteria, fungi, living
- 5. smallest particle of an element
- 8. air, mineral, light not living
- 9. of all kinetic energy heat is present
- 10. by natural means in a short period
- 11. sum of all living matter on earth
- 12. that takes changes in chemicalreaction
- 13. reaction during which heat releases
- 14. simplest unit of a chemical compound
- 15. living thing
- 16. produced during a chemical reaction
Down
- 2. replaceable by natural means
- 3. that is stored in a system/object
- 4. of gas surrounding a planet
- 6. source or supply that benefits organisms
- 7. of motion
- 13. reaction requiring the absorption of heat