Across
- 2. batman has one as a secret lair
- 6. an inorganic or non living natural solid compound
- 7. hot liquid rock beneath earth's surface
- 9. a fraction of earth's overall mass and the edges of bread
- 10. the birth of mountains
- 11. inclined surface also used to ski
- 13. the denser one goes under
- 14. measure of energy released from earthquake
- 15. a shaking of the earth due to plate tectonics
- 17. the study of earth's surface landforms
- 18. a depression or something you can fall into
Down
- 1. the big supercontinent believed to have existed once
- 2. a third of the earth's mass but only a sixth of its volume and rhymes with shore
- 3. an angry mountain that spews lava
- 4. second most prevalent greenhouse gas produced by human activities and livestock
- 5. rusting may make this familiar
- 6. 80 percent of earth's total volume
- 8. the study of earth's past climates and starts with a p
- 12. rhymes with java
- 16. assemblage of minerals bound together or Dwayne Johnson's wrestling name