How is water recycled1

Water moves from the Earth’s surface to the Atmosphere, then it moves back to the surface.

Water changes states “forms” as it moves.

How does water changes?

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Evaporation


During Evaporation

• Water turns from a liquid to a gas.

• Water moves from rivers and lakes into the atmosphere in the form of water vapor.


Liquid to a Gas


Condensation

•condensation is the process of gas cooling to form a liquid


So what is Condensation?

•Condensation is a process, a change•It’s the cooling process that changes gas into a liquid•It is the opposite of evaporation.


Bathroom mirror

•After a shower your bathroom is filled with steam (water vapour) from the hot water.

•When it hits the cold glass of the mirror it turns back to water and forms tiny droplets

H e l lo !


Freezing•The process of liquid cooling to form a solid

The Water Cycle

Water never leaves the Earth. It is constantly being cycled through the atmosphere, ocean, and land. This process, known as the water cycle, is driven by energy from the sun. The water cycle is important to the existence of life on our planet.

Evaporation

• Heat energy from the sun causes water in

puddles, streams, rivers, seas or lakes to

change from a liquid to a water vapor.

• This is called evaporation.

• The vapor rises into the air and collects.

“Evaporation”The conversion of water from a liquid to a gas

Solar energy drives evaporation of water from the ocean. The evaporated water changes from a liquid form into

water vapor a gaseous form.

Condensation

•Water vapor collects in the sky. As the it cools the water vapor condenses into water drops.

• Clouds are formed by condensation.

“Condensation”The transformation of water vapor back into liquid water by cooling

Evaporated water is warmed and rises into the air where it eventually cools and condenses to form clouds.

Precipitation

•Water falls to the earth from clouds. Mainly as rain, but sometimes as snow, sleet and hail.

•This is called precipitation.

“Precipitation”Rain, hail, or snow falling from the clouds

due to the condensation of water

With enough condensed water, you get rain!When clouds become very heavy withcondensed water, the water is released

in the form of rain, hail, or snow.

How is water recycled1

Science