Rivers

Question 0

Evaporation

Answer 0

Water changing from its liquid form to a gas (water vapour) and returning to the atmosphere

Question 1

Precipitation

Answer 1

Water deposited on the ground as a liquid or as a solid, e.g rain. Sleet, hail, snow or even fog

Question 2

Evapotranspiration

Answer 2

The combined process of evaporation and transpiration that results in the loss of water from leaves

Question 3

Surface runoff

Answer 3

Water moving across the surface of the ground. This may happen when rain cannot soak into the ground, e.g on Tarmac surfaces or even during heavy rainfall

Question 4

Groundwater flow

Answer 4

Water moving within rocks below the ground

Question 5

Through flow

Answer 5

Water moving downhill through the soil layers. It will generally flow slowly unless concentrated in natural pipes in the soil

Question 6

Interception

Answer 6

Plants trap some of the precipitation so it may not immediately pass to the ground. Some may drip to the ground as throughfall

Question 7

Infiltration

Answer 7

Water soaking into the soil from the surface

Question 8

Percolation

Answer 8

Water moving from the surface layers of soil into deeper layers of soil and rock

Question 9

Channel flow

Answer 9

Water moving downhill within rivers

Question 10

Overland flow

Answer 10

The combined processes of channel flow and surface flow

Question 11

Surface storage

Answer 11

Water stored on the surface of the ground

Question 12

Soil moisture

Answer 12

Water held within the soil, the quantity of which will vary

Question 13

Groundwater storage

Answer 13

Water stored in the rocks below the ground