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