What does heat turn water into
vapour
what is precipitation?
condensation of atmospheric water vapor that falls under gravitational pull from clouds
Wha are Tides?
the periodic changes in the level of the water in the oceans and seas caused by the gravitational pull of the Sun and the Moon.
Where is fresh water found?
under the ground (groundwater) and on the surface (glaciers, lakes and rivers).
The river _______________ increases during rainy seasons and decreases during dry seasons.
flow rate
Where is The largest glacier?
Antarctica
what are the two main Risks and Problems related to water
Water scarcity and extreme excess of water (floods)
What is transpiration?
the conversion of water from liquid to gas as it passes through plant
What sources drive the ocean currents?
wind, tides, changes in water density, rotation of the earth
what is more dense cold or hot water?
cold
Where do interception and infiltration happen?
....
Saltwater makes up what percentage of water on Earth?
97%
What affects the flow of a river?
mountains and relief, climate,
What are the 3 courses of a river and how are they different ?
upper, middle and lower. location, water flow, speed, erosion
What causes serious floods??
summer or autumn storms, or when heavy rain falls in the mountains, or there is a rapid melting of snow.extreme weather phenomena
