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| Question | Answer |
| Evaporation | Water is converted from liquid form into a gas (water vapour) on the SURFACES of lakes etc due to the heat of the sun. |
| Transpiration | Where plants TAKE UP liquid water from the SOIL (with their roots) and "breathe" it into the ATMOSPHERE as water vapour |
| Interception | When trees and plants OBSTRUCT (intercept) the DOWNWARD movement of precipitation by STORING some of the water on their LEAVES |
| Condensation | Where the ATOMOSPHERE cools and water vapour changes into a liquid. This liquid takes the form of water droplets that appear in the atmosphere as CLOUDS. |
| Precipitation | The transfer of water in ANY FORM from the ATMOSPHERE to the land or sea SURFACE. This can be in the form of rain, hail or snow. |
| Overland flow | Where precipitation hits the ground and MOVES UNDER GRAVITY and eventually enters a stream, river or lake. This is also known as surface run off. |
| Infiltration and percolation | This is the transfer of water downwards through the soil and rock into the AQUIFER or UNDERGROUND STORE Infiltration- water moving downwards through the soil Percolation- water moving through rocks and into the aquifer/u.g. store |
| Throughflow | This takes place between the ground surface and the top of the groundwater store. Under the influence of GRAVITY, water moves slowly THROUGH THE SOIL until it reaches a stream or river. (movement of water horizontally under land surface but over aquifer due to gravity) |
| Groundwater flow | This takes place in the AQUIFER and is the UNDERGROUND transfer of water to rivers, lakes and the sea |
| Evapotranspiration | LOSS of moisture DIRECTLY from rivers/lakes (evaporation) and vegetation (transpiration) |
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