Across
- 1. The up and down movements of water in the sea
- 5. The part of land near the sea
- 6. The body of salt water which covers 70% of the Earth's surface
- 7. The planet on which we live
- 8. An open land area with no buildings
- 9. An area of land with dense forest and a lot of vegetation
- 11. A big natural elevation of the Earth's surface
Down
- 2. An opening in a planet's surface through which rock, hot gases or other materials erupt
- 3. A large body of water surrounded by land
- 4. An area of lanf smaller than a continent and completely surrounded by water
- 5. A large mass of land considered a collective region.There are seven in the world
- 10. A large amount of water flowing continually