chemistry

Edit Answers
1234567891011121314151617181920212223242526272829303132
Across
  1. 3. an element with oppositely charged ends is _________
  2. 5. a modification of an organism or its parts that make it more fit for existence evolution
  3. 7. a long scoop-shape and made of metal
  4. 11. prefix of 7
  5. 15. a small particle with a negative charge that is found in all atoms
  6. 16. a branch of science that deals with celestial objects
  7. 17. a giant gas planet
  8. 18. a biological community of interacting organisms and their physical environment
  9. 21. combustion of __________ Fuel+ O2→ CO2+H2O
  10. 24. freezes at 32 degrees Fahrenheit
  11. 25. a measure of how acidic/basic water is
  12. 27. a planet that orbits a star outside the solar system
  13. 28. the act of making offspring
  14. 29. an atom or molecule that has a positive or negative electrical charge
  15. 30. sodium chloride
  16. 31. The distance Earth orbits the Sun is just right for water to remain a liquid
  17. 32. what bonds involve the sharing of electron pairs between atoms.
Down
  1. 1. "Bye, Felicia."
  2. 2. a natural home or environment of an organism
  3. 4. the smallest part of a substance that cannot be broken down chemically
  4. 6. a cloud of gas and dust in outer space
  5. 8. the study of matter and energy
  6. 9. a system of millions or billions of stars
  7. 10. a colorless, odorless reactive gas
  8. 12. born 14 March 1879
  9. 13. water with metal substances are
  10. 14. a chemical process that occurs in plants when exposed to sunlight
  11. 19. a colorless pungent gas in solution made by oxidizing methanol
  12. 20. Deoxyribonucleic Acid
  13. 22. "as if"
  14. 23. the explosion of a star
  15. 26. an object that orbits a planet or something else that is not a star