Across
- 3. steep-sided lowland formed by a river eroding land
- 5. computer software used to map the earth
- 7. tools and pottery from the past (example)
- 8. blocks out dangerous rays from the sun
- 11. cold, rocky sphere with no atmosphere or water; natural satellite of the earth
- 12. preserved remains of organisms and plants
- 14. full rotation of the earth
- 16. 4th rock from the sun
- 19. highest spot on the earth's surface
- 20. create/cause earthquakes, mountains, volcanos
- 22. covers about 70% of the earth's surface
- 23. water, wind, and ice moving previously weathered material
- 25. 3rd rock from the sun
- 26. the season with the least hours of daylight in the Northern Hemisphere
Down
- 1. study of the earth, its people, and landscape
- 2. layer of the earth that consists of liquid magma
- 4. a flat area at a high elevation
- 6. narrow piece of land that connects two larger pieces of land
- 9. human's natural surroundings
- 10. lines that run north and south across the earth's surface
- 11. lowest spot on the earth's surface (it's under water)
- 13. lines that run east and west across the earth's surface
- 15. full revolution of the earth
- 17. imaginary line running through the earth's center
- 18. center of our solar system
- 21. location a river empties into a larger body of water
- 24. caused by the tilt of the earth