The Water Cycle 1
This is the process where liquid water changes into water vapour because of heating.
Evaporation
Approximately what percentage of Earth's water is saltwater?
97%
A resource that can naturally replenish itself is called this.
Renewable Resource
Australia is the world's second-driest continent after this continent.
Antarctica
This occurs when there is not enough freshwater to meet the demands of people in a region.
Water Scarcity
This process occurs when water vapour cools and changes into liquid water, helping form clouds.
Condensation
Approximately what percentage of Earth's water is freshwater?
3%
Growing crops and raising animals requires water for this type of use.
Agricultural
Rivers, lakes and wetlands are examples of this type of water.
Surface Water
A long period with little or no rainfall is called this.
Drought
Rain, snow, hail and sleet are all examples of this process.
Precipitation
About what percentage of Earth's freshwater is frozen in glaciers and ice caps?
79%
Water found in rivers, lakes and dams is called this type of water.
Fresh/Blue Water
As you move towards the centre of Australia, rainfall generally does what?
Decreases
This process removes salt from seawater to create freshwater.
Desalination
This is the process where water is lost from plants into the atmosphere.
Transpiration
About what percentage of Earth's freshwater is found underground as groundwater?
20%
The wise use of resources so they remain available for future generations is called this.
Sustainability
In Australia, rainfall is generally highest in these areas.
Coastal
What is one way Perth is increasing its water supply by using treated wastewater?
Groundwater replenishment
This is the process where water soaks into the ground and becomes part of groundwater.
Infiltration
These large masses of moving ice contain a large amount of Earth's freshwater.
Glaciers
Wastewater from baths, sinks, washing machines and dishwashers is called this type of water.
Grey Water
These structures are built to store large quantities of water.
Dam/reservoir
In Perth, treated wastewater can be added to these underground water stores to replenish them.
Aquifers