Science

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Across
  1. 2. The supreme law of a country
  2. 7. The largest planet in the solar system
  3. 9. A mountain that can erupt lava
  4. 12. Opposition to the disestablishment of a church
  5. 14. Gas essential for breathing
  6. 15. The star at the center of our solar system
  7. 17. A popular programming language
  8. 20. Process by which plants make food using sunlight
Down
  1. 1. A community of living organisms and their environment
  2. 3. A common fruit that keeps the doctor away
  3. 4. Study of ancient human history through remains
  4. 5. The highest mountain in the world
  5. 6. You sit on this
  6. 8. Study of space and celestial objects
  7. 10. A natural flowing water body
  8. 11. A nerve cell in the brain
  9. 13. You read this
  10. 16. Instrument used to see tiny objects
  11. 18. Study of past events
  12. 19. A global network connecting computers