scientific terminology

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Across
  1. 5. A group of atoms bonded together chemically.
  2. 7. Reaction The process where substances change into new ones with different properties.
  3. 10. The study of heredity and the passing of traits from one generation to the next.
  4. 11. System A group of celestial objects, including the sun, planets, and their moons.
  5. 12. The remains or traces of prehistoric life preserved in rocks.
  6. 13. The gradual change of species over time through natural selection.
  7. 14. A push or pull that can change the motion of an object.
  8. 15. The ability to do work or cause change in a system.
Down
  1. 1. A force that attracts or repels objects made of certain materials.
  2. 2. The process by which green plants convert sunlight into energy.
  3. 3. A substance made up of only one type of atom.
  4. 4. A form of energy resulting from the movement of charged particles.
  5. 6. A community of living organisms and their environment.
  6. 8. The smallest unit of matter, composed of protons, neutrons, and electrons.
  7. 9. The force that attracts two objects with mass toward each other.