Across
- 4. A huge sheet or river of ice that moves slowly
- 6. A time when much of the Earth is frozen and covered with ice
- 7. A way the Earth tilts and spins
- 9. The time between two events
- 11. A person who studies and investigates things
- 12. warming The gradual increase in the Earth's temperature
Down
- 1. A natural landform that stands tall
- 2. very cold
- 3. change Long-term shifts in temperatures and weather patterns
- 5. Happening later than expected
- 8. Not changing much; steady and consistent
- 10. and South Poles The very top and bottom parts of the Earth