Science

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Across
  1. 5. the birthplace of most stars
  2. 12. proposed the idea called continental drift
  3. 13. the actual brightness of a star
  4. 14. the fault that runs though California
  5. 15. large moving pieces of Earth
  6. 16. the force that holds galaxies together
  7. 17. the planet with the most moons
Down
  1. 1. closest star to Earth
  2. 2. the color of the hottest stars
  3. 3. two plates move away from each other
  4. 4. one large landmass
  5. 6. tectonic plates collide
  6. 7. the bending, tilting, and breaking of rock
  7. 8. molten rock beneath the Earth’s surface
  8. 9. tectonic plates move past one another in opposite directions
  9. 10. one tectonic plate is pulled beneath another plate
  10. 11. the rigid solid layer of Earth made of rock
  11. 14. a body composed of gas that emits light