Across
- 2. The spreading of something widely
- 5. a location In which living organisms reside
- 7. Something that resides on the table of elements
- 9. a branch of science concerned with movement and properties of matter and energy
- 10. , surface, or object resistance
- 13. small sediment that erodes off of a surface
- 16. A protein that acts as a biological catalyst
- 19. small rocks often included in runoff
- 20. the study of life
- 21. A molecule that can have a positive or negative charge
Down
- 1. the remains or imprint of an organic species
- 3. The planet we live on
- 4. the study and research of things
- 6. science Technology Engineering, and Math
- 8. How plants eat
- 11. a hard geological material
- 12. The study of chemicals
- 13. Negative charge atoms
- 14. No charge atoms
- 15. A low Ph
- 17. A high Ph
- 18. Positive charge atoms