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