Across
- 2. There is a wide lagoon or shallow sea between the reef and the shore.
- 5. Algae needs this to photosynthesize.
- 7. Occurs when tributaries follow bands of less resistant rock and join the main river at right angles.
- 8. Currents are slower and ............. on the inside of the meander.
- 9. When the riverbed is uneven, pebbles are carried by fast water and can be temporarily trapped, eroding a circular spot.
- 12. The material a river carries.
- 15. A reef found in shallow water close to the shore.
- 16. Water that is collected underground.
- 17. The process where water released from clouds in the form of rain, snow, sleet and hail.
- 19. When floating particles of mud, silt, sand and clay are transported along the surface of the water.
- 22. A circular reef with a lagoon inside.
- 24. Occurs when rivers flow away from a central area of high land.
- 25. as a waterfall treats upstream it leaves this behind.
- 27. The process in which water vapour changes from a gas to a liquid.
Down
- 1. When a river drops off all or part of its load.
- 3. Corals need sunlight to penetrate the water, so they grow in .......... water.
- 4. An area of almost flat land on both sides of a river.
- 6. The necks of a meander become narrower and narrower because of ............... .
- 10. Where thin alternating bands of hard and soft rock cross the course of a river creating an uneven, turbulent area.
- 11. When water disproves minerals in rocks.
- 13. Formed by the deposition of sediment at the mouth of a river as it enters a sea or lake.
- 14. Corals thrive in ......... temperatures.
- 15. Coral reefs will not grow near the mouth of a river because of ...... water.
- 18. When heavier materials such as gravel and pebbles are pushed and rolled along the channel.
- 20. In a meander currents are ............... on the outside bank.
- 21. when a river is divided into two or more channels.
- 22. What coral feed on.
- 23. The cloudiness or haziness in the water.
- 26. The most common drainage pattern.
