Across
- 4. Largest reservoir
- 5. the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water
- 6. Water found in plants changing liquid to a gas
- 8. Show outer shell electrons
- 10. Negative charge
- 11. The process of moving high concentrations of CO2 to low concentrations of CO2
- 12. Rows of elements
- 15. A gas that dissolves in water
- 17. The number of protons in an atom's nucleus is equal to its atomic number
- 18. Positive charge
Down
- 1. Nonmetals sharing electrons
- 2. The sum of the number of protons and the number of neutron in the nucleus
- 3. Form in areas of the ocean and it's a place where animals can't live
- 5. Chain reactions that moves part of the system towards extremes (hi/lo)
- 7. Atoms of the same element that have different numbers of neutrons
- 9. Columns of elements
- 13. Charged atoms
- 14. The process of transferring carbon from one living thing to another
- 15. The process of cutting down forests and releasing CO2 through combustion of the trees
- 16. Matter enters and leaves (school)