Science

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Across
  1. 1. The center of an atom
  2. 3. Table that lists all known elements
  3. 5. Acids have a low ___ level
  4. 6. An animal that only eats plants
  5. 8. The ability to do work
  6. 9. Natural home of an organism
  7. 15. Gas we breath in to stay alive
  8. 16. A scientist who studies weather
  9. 17. The system that includes your bones
  10. 18. Substance that carries genetic info
  11. 19. Smallest unit of an element
  12. 20. Rain, snow, sleet, or hail
Down
  1. 2. A shaking of the Earth's surface
  2. 4. Tool used to look at stars
  3. 7. The powerhouse of a cell
  4. 10. All the living and nonliving things in an area
  5. 11. Force that pulls objects toward Earth
  6. 12. Process plants use to make food
  7. 13. The layer of gases around Earth
  8. 14. Natural satellite of the Earth