Hydrology:Water Cycle

8.E.1

Explain the structure of the hydrosphere including: Water distribution on earthLocal river basin and water availability

Warm-up 10/8

▪How would you describe water to a visitor from another planet who has never seen it? (min. 30 words)

▪ Remember to mention where it comes from, where to find it, how to use it,

where it goes, etc.

Water

▪ Water is one of the most common substances on Earth.

▪ 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 crucial to the existence of life on our planet

Discovery Education Video

▪ http://app.discoveryeducation.com/player/view/assetGuid/DBDE8500-30DA-4AFC-B262-A2983A3E0580

http://coastgis.marsci.uga.edu/summit/watercyclegen.htm

Evaporation

▪ During part of the water cycle, the sun heats up liquid water and changes it to a gas by the process of evaporation.

▪ Water that evaporates from Earth’s oceans, lakes, rivers, and moist soil rises up into the atmosphere.

Transpiration

▪ The process of evaporation from plants is called transpiration.

▪ This usually takes place as water exits from plants leaves

Condensation

▪ As water (in the form of gas) rises higher in the atmosphere, it starts to cool and become a liquid again.

▪ This process is called condensation. When a large amount of water vapor condenses, it results in the formation of clouds.

Precipitation

▪ When the water in the clouds gets too heavy, the water falls back to the earth. This is called precipitation.

▪ Precipitation can form as rain, hail, sleet, or snow

Runoff

▪ When rain falls on the land, some of the water is absorbed into the ground forming pockets of water called groundwater.

▪ Most groundwater eventually returns to the ocean. Other precipitation runs directly into streams or rivers. Water that collects in rivers, streams, and oceans is called runoff.

Homework

▪ Yellow – Ocean

▪ White – Clouds

▪ Black – groundwater

▪ Brown – soil

▪ Green – Glacier

▪ Orange – Animal

▪ Pink – River

▪ Blue- Plants

▪ Red – Lake

▪ Write a creative story from the perspective of a raindrop.

▪ You must tell me each phase/ change you went through according to your water cycle voyage.

▪ BE CREATIVE!

▪ DUE WEDNESDAY