Earth Matters Ch 1

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Across
  1. 2. it travels at 299 792 km per second
  2. 5. they rotate around planets
  3. 7. a planet’s mass affects it
  4. 9. small remaining quantity
  5. 12. dist light travels in 1 year
  6. 13. independent systems of stars, gas and dust
  7. 15. energy as electromagnetic waves
  8. 16. a protoplanet of our solar system
  9. 17. a planet’s mass affects it
  10. 20. it has no like, equal, or parallel
  11. 21. the bishop who thought Earth was created in 4004 BCE
Down
  1. 1. Earth’s is almost circular
  2. 3. system of ideas explaining something
  3. 4. the most widely accepted theory about how the universe came to be
  4. 6. it’s 4.6 billion years old
  5. 8. of the Middle Ages
  6. 10. primitive planet
  7. 11. our galaxy
  8. 14. it’s on Earth in liquid form
  9. 16. a protoplanet of our solar system
  10. 18. a planet’s mass affects them
  11. 19. a protoplanet of our solar system