Geography!

3. an area of land that is higher than the surrounding land
4. an area of sand or small stones near the sea
6. a weather condition with very strong wind, heavy rain, and often thunder and lightning:
9. branches and trunks of trees
11. a large area of water surrounded by land
12. water dropping from a higher to a lower point
15. a movement of water, air, or electricity in a particular direction:
17. the salty water that covers a large part of the surface of the Earth
18. a natural wide flow of fresh water across the land into the sea

1. the rise and fall of the sea that happens twice every day:
2. the dry solid part of the Earth's surface
4. a severe snow storm with strong winds
5. an area of water smaller than a lake, often artificially made
7. a raised part of the Earth's surface, much larger than a hill, the top of which might be covered in snow
8. an area of low land between hills or mountains
10. an area, often covered with sand or rocks
13. a large area of land covered with trees and plants
14. a very large area of sea
16. Small River
17. the small, soft, white pieces of ice that sometimes fall from the sky