Across
- 3. How all birds stay warm in the winter
- 6. A branch of biology that studies how organisms respond to their environments
- 7. Blindingly heavy snow and high winds
- 11. The process of water changing gas
- 14. Towering body of land that reaches freezing elevations
- 15. Taxonomy of plants, animals and fungus
- 16. A number indicating a lack of quantity
- 18. Measurement showing the difference between sea level and a taller place
- 19. American unit of measurement used to describe height
Down
- 1. Bodies of water that cover most of Earth's surface
- 2. Water overflow
- 3. How all wild mammals stay warm in the winter
- 4. Zero elevation
- 5. Spinning cloud with a funnel shape
- 8. Melted snow
- 9. Insulating blanket of air that covers Earth
- 10. The weather trends of a place as measured over time
- 12. Smelly animal with white racing stripe
- 13. Frozen precipitation
- 17. Common bovine that eats gardens