Across
- 2. is the process of the combination of two substances that ar physically combined
- 6. the substance that dissolves in a solution
- 7. a study of plan that includes a growth
- 8. the part of earth where life exists
- 9. is the second-smallest of solar system
- 10. type of chemical bond formed between two atom
- 12. the force applied to a particular area
- 15. the planet we live on
Down
- 1. are one of the building blocks of an atom
- 3. the total amount of water on a plantthe
- 4. a state of the atmosphere at a place and time regards of heat
- 5. the envelope of gases surrounding the earth
- 11. is the psychological interaction between two people
- 13. the light or warmth receives from the earth's sun
- 14. the force that attacks a body toward the center of the earth