The Water Cycle
This process, powered by the sun, turns liquid water into water vapour.
Evaporation
What is physical water scarcity?
Physical water scarcity happens when total water demand from people, crops, and industries is higher than the fresh water supply available in a specific area.
About this percentage of all water on Earth is saltwater, found in the oceans.
97%
This is the chemical formula for water.
H20
This imaginary line divides the Earth into the Northern and Southern Hemispheres
The Equator
This process turns water vapour into liquid droplets, forming clouds.
Condensation
What is economic water scarcity?
Economic water scarcity happens when a region has enough freshwater resources in nature to meet human and environmental needs, but people cannot use them. This problem is caused by a lack of money, poor water management, or missing pipes, pumps, and treatment plants.
This term describes the total amount of water theoretically available in a region, based on rainfall and rivers, before any is actually used.
Potential water resource
This is the longest river in the world.
The Nile
This is the smallest country in the world by both area and population.
The Vatican City
Give three different forms of precipitation
Rain, hail, sleet, snow,
This extended period of below-average rainfall is one of the most common natural causes of water scarcity.
A drought
This process removes salt from ocean water to make it drinkable.
Desalination
This is the largest ocean on Earth.
Pacific
This is the largest continent on Earth by both area and population
Asia
What is the other stage, along with runoff, that occurs when water makes it way back to earth.
Infiltration or percolation
This Middle Eastern country, one of the most water-scarce nations on Earth, gets less than 100mm of rain a year in most areas and depends on desalination and imported water.
Jordan
This term describes the "hidden" water used to grow, make or produce a food or product, even though it's not physically inside it.
Virtual Water
This deep trench in the Pacific Ocean is the deepest known point in any of Earth's oceans.
Mariana Trench
This is the largest desert in the world by area
Antarctica
The water cycle is described as this type of system, because virtually no new water is created or destroyed on Earth — the same water is continuously recycled.
A closed system
Despite having major rivers like the Congo and consistently high rainfall, this Central African country has one of the lowest rates of access to clean water in the world due to poor infrastructure.
Dr Congo
It takes around 50,000 litres of virtual water to produce just one kilogram of this popular food item.
Beef
About this percentage of the human body is made up of water.
60%
This is the largest country in the world by land area.
Russia