Lesson 1: The Water Cycle
Learning Goal: To learn about the Water Cycle Using the Internet. B: 3.9 A: 4.9
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The movement of water throughout the Earth is the Water Cycle. Water is very important to our lives, since we are mostly water. The Water Cycle is important to all living things. Water starts off as, (an example) a puddle, then it Evaporates into the air. It then Condenses into a cloud. After that, it precipitates into rain, which can form a puddle again. This is why it is a cycle. No water is lost in the cycle.
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Evaporation is when water (liquid) tuns into water vapor (gas). 90% of water vapor comes from this process. Evaporation happens when water is heated and turns into a gas. Have you ever poured a little water on the pavement on a hot, summer day, it most likely disappeared, because the hot pavement heated the water, so it had Evaporated.
Transpiration is when water, in a plant, gets converted into water vapor. This comes out of the plant from Stomata, which are tiny holes on the plant's leaves.
Transpiration is responsible for 10% of the water vapor in the atmosphere.
Sublimation is when ice gets converted directly into water vapor. It does not happen much, but it happens when dry air passes over snow or ice. some of it gets converted into water vapor.
Transpiration is when water, in a plant, gets converted into water vapor. This comes out of the plant from Stomata, which are tiny holes on the plant's leaves.
Transpiration is responsible for 10% of the water vapor in the atmosphere.
Sublimation is when ice gets converted directly into water vapor. It does not happen much, but it happens when dry air passes over snow or ice. some of it gets converted into water vapor.
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Liquid water. The world is covered in it. We drink it. Earth is just right for liquid water. Not too hot, not too cold. Liquid water starts in the atmosphere, where it is condensed into clouds. It then falls to the Earth as precipitation. It can fall as Rain, Sleet, Hail, or Snow. This can then be rivers, lakes, oceans, groundwater, etc. It can also be runoff, which is responsible for feeding rivers and lakes.
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Ice. The pesky thing you find on roads that makes cars spin in the winter. In the summer, you use it to cool your drink while you are tanning at the beach. Ice is frozen water. It is the result of water that was chilled. It can fall as Hail and Snow. Ice cools off your drink by melting into cool water, which is in your drink. Ice is also in ice caps and glaciers at the polar regions. In glaciers, ice slowly flows down the glacier. This can take years!
Vocabulary
Water Cycle |
The cycle in which water circulates the Earth. |
Evaporation |
When water changes from a liquid to a gas. |
Transpiration |
When water changes from a liquid to a gas in a plant. |
Sublimation |
When water changes from a solid to a gas. |
Condensation |
When water changes from a gas to a liquid. |
Precipitaion |
When water falls to the ground from clouds. |