Princeton Vocabulary Crossword

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Across
  1. 1. streaks that blast from impact craters
  2. 3. tectonic plates crashing into eachother, causing one to slide under another
  3. 4. Mountainous regions on the moon
  4. 8. Fastest seismic waves
  5. 9. When Earth passes between the Sun & Moon, casting Earth´s shadow over the moon
  6. 12. natural process where gases trap the Sun´s heat, keeping the planet warm enough for life
  7. 14. Slower seismic waves that arrive after P-waves
  8. 16. The official shape of the Earth
  9. 17. massive supercontinent
  10. 19. long,narrow channels or deep trenches on the moon´s surface
  11. 20. process used by plants to turn sunlight,H20,C2O into food and oxygen
  12. 23. natural process where unstable atoms break down over time. creating heat inside Earth
  13. 24. middle layer of Earth, right under the crust
Down
  1. 1. when a tectonic plate splits and pulls apart,causing valleys
  2. 2. invisible force that makes winds/ocean currents curve
  3. 5. When the moon passes directly between the Sun & Earth, blocking tne Sun´s light
  4. 6. When a moon takes the same amount of time to spin on its axis as it does to orbit its planet
  5. 7. glowing light in the sky, caused by solar particles in the sky colliding with gases in Earth´s atmosphere
  6. 10. heat-transfer process where hot,less dense material rises & cold, dense material sinks
  7. 11. vibrations/shockwaves passing through Earth, normally triggered by earthquakes
  8. 13. Bowl shaped pits on a planet/moon´s surface
  9. 15. protective blanket of gases surrounding a planet, kept in space by gravity
  10. 18. measure of how tight the mass inside an object is
  11. 21. Plains on the moon, formed by volcanic eruptions
  12. 22. Large rock puzzle pieces that slowly move around