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Understanding The Water Cycle. Water, water everywhere!. The Earth’s Water. Water covers about 70% of the earth Of the earth’s water, 80% is in the oceans The rest of the earth’s water is in the: Polar Ice Caps Lakes, rivers, and streams Glaciers. Where does Rain Come from?.
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Understanding The Water Cycle Water, water everywhere!
The Earth’s Water • Water covers about 70% of the earth • Of the earth’s water, 80% is in the oceans • The rest of the earth’s water is in the: • Polar Ice Caps • Lakes, rivers, and streams • Glaciers
Where does Rain Come from? • All water on Earth is linked through the Water Cycle • The Water Cycle is how water moves over the Earth’s surface
Evaporation • The Sun heats up bodies of water small or large • As water heats up it Evaporates • When water evaporates it turns into Water Vapor • The water vapor rises in the heated air into the sky
Condensation • As the water vapor rises in the sky it condenses • Condensation occurs as water molecules attach themselves to dust particles and other water molecules • When enough water molecules attach themselves together the form clouds
Precipitation • When clouds get too heavy with water molecules the water breaks free and falls to the Earth as Precipitation • Precipitation can fall as: • Rain Snow Sleet Hail (Ice)
Recycling the Earth’s Water • When precipitation falls into the oceans it is mixed with the existing water • When precipitation falls over land it collects in lakes, rivers and steams • This water is eventually Recycled to the Earth’s oceans
Summary • The Earth’s water cycle is how water moves over the Earth • There are four main parts • Evaporation • Condensation • Precipitation • Recycling More Information