Theme A Water Cycle

Question 1

Water cycle

Answer 1

The water cycle is the continuous movement of water between the land, the see and the air.

Question 2

Drainage basin

Answer 2

A drainage basin is an area of land drained by a main river and its tributaries

Question 3

Precipitation

Answer 3

A form of moisture falling to the ground eg, rain snow and hail

Question 4

Interception by vegetation

Answer 4

The process in which precipitation is prevented from falling onto the ground by plants. It slows run-off and reduces the risk of flooding.

Question 5

Surface run-off

Answer 5

The movement of water across the surface of the Earth

Question 6

Infiltration

Answer 6

The movement of water form earths surface into the soil

Question 7

Throughflow

Answer 7

Water which is moving through the soil

Question 8

Percolation

Answer 8

The movement of water from the soil into the bedrock toward a river or sea

Question 9

Groundwater flow

Answer 9

Water which is moving horizontally through the bedrock

Question 10

Evapotranspiration

Answer 10

The process by which water is transferred to the atmosphere by evaporation from the surface eg, big lakes and transpiration from plants

Question 11

Source

Answer 11

Starting point of river

Question 12

Tributary

Answer 12

Smaller river that flows into main river

Question 13

Confluence

Answer 13

The point where two rivers meet

Question 14

River mouth

Answer 14

The end of a river where it meets the sea ocean or lake.