Year 8 Rivers

The sun heats water in oceans and seas. Water _____________ as water vapour into the air. As the vapour is rising the lower temperature causes water vapour to _____________ into tiny liquid water droplets which form clouds. Atmospheric circulation moves water vapour around the globe, where eventually it falls which is known as _______________. Some precipitation falls as snow and hail and can accumulate as ____________. Water that falls on the land and runs along the ground is known as _______________.

Which of the following is the correct definition of a tributary?

• Smaller rivers which join the main one.

• A diagram showing a slice through the river along its length.

• The flat area of land that a river may flood into.

• The starting point of a river.

Which of the following is the correct definition of the Source?

• Smaller rivers which join the main one.

• A diagram showing a slice through the river along its length.

• The flat area of land that a river may flood into.

• The starting point of a river.

Which of the following is the correct definition of the Flood Plain?

• Smaller rivers which join the main one.

• A diagram showing a slice through the river along its length.

• The flat area of land that a river may flood into.

• The starting point of a river.

Which of the following is the correct definition of the Long Profile?

• Smaller rivers which join the main one.

• A diagram showing a slice through the river along its length.

• The flat area of land that a river may flood into.

• The starting point of a river.

Which of the following is the correct definition of the Long Mouth?

• Smaller rivers which join the main one.

• A diagram showing a slice through the river along its length.

• The flat area of land that a river may flood into.

• The place where the river enters a lake, sea or ocean.

Define the following term: Hydraulic Action.

What 2 processes are occurring in this diagram

• Transportation

• Deposition

• Erosion

• Hydraulic Action

Describe & explain one human reason and one natural reason why rivers flood.