Across
- 3. High, elevated flat land; a large mostly flat area of land that rises above the surrounding land
- 5. A narrow deep valley with very steep, rocky sides.
- 6. Half of the Earth
- 10. A stream or river that flows into a larger river
Down
- 1. A massive (huge) sheet of ice
- 2. A physical feature on Earth's surface; an area with features that make it different from other areas
- 4. The study of the Earth and the ways people use it
- 7. An arm of the sea (the area where a river meets an ocean)
- 8. A period of time when Earth was colder than it is today
- 9. An area of land; a natural shape we see on the surface of the Earth