Water cycle


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Water cycle

  1. 1. The Water Cycle
  2. 2. Pre-Reading Activity <ul><li>What do you think of when you hear the word WATER CYCLE? </li></ul><ul><li>What is precipitation ? </li></ul>
  3. 3. <ul><li>What is this picture of? </li></ul><ul><li>SNOW </li></ul><ul><li>What does snow look like? </li></ul><ul><li>White </li></ul><ul><li>Fluffy </li></ul>
  4. 4. <ul><li>What can you tell me about this picture? </li></ul><ul><li>Rain </li></ul><ul><li>How can we describe rain? </li></ul><ul><li>Wet </li></ul><ul><li>Sometimes cold </li></ul><ul><li>Water </li></ul><ul><li>liquid </li></ul>
  5. 5. <ul><li>How can we describe these photos? </li></ul><ul><li>Ice </li></ul><ul><li>What is ice like? </li></ul><ul><li>Hard </li></ul><ul><li>Cold </li></ul><ul><li>solid </li></ul>
  6. 6. Forms of Water <ul><li>Water can occur in 3 different states </li></ul><ul><ul><li>solid, liquid, gas </li></ul></ul>Solid water is frozen; ice is an example of solid water that has been frozen Liquid water is wet and fluid ( flows ); this is the most familiar form such as waters, lakes, and rivers are all liquid water Gas is the water vapor in the air that we can not see
  7. 7. <ul><li>Key Words : </li></ul><ul><li>Absorb= to take in </li></ul><ul><li>Gas= can not see/air like </li></ul><ul><li>Liquid= example is water </li></ul><ul><li>Snow= cold, white </li></ul><ul><li>Ice=hard, cold, solid </li></ul>*clouds WATER CYCLE infiltration condensation evaporation <ul><li>Ground </li></ul><ul><li>Absorb </li></ul>precipitation transpiration <ul><li>Clouds* </li></ul><ul><li>Cold air </li></ul><ul><li>Gas to liquid </li></ul><ul><li>Liquid to gas </li></ul><ul><li>Water VAPOR </li></ul><ul><li>Hot air </li></ul><ul><li>Rain </li></ul><ul><li>Snow </li></ul><ul><li>Ice </li></ul><ul><li>weather </li></ul><ul><li>Absorb water </li></ul><ul><li>Liquid from plant </li></ul><ul><li>changes to </li></ul><ul><li>water vapor </li></ul>
  8. 8. <ul><li>http:// www.youtube.com/watch?v =Yw275056JtA&feature=related </li></ul><ul><li>http:// www.youtube.com/watch?v =Yw275056JtA&feature=related </li></ul><ul><li>http:// www.youtube.com/watch?v =Yw275056JtA&feature=related </li></ul>Video Clip
  9. 9. Introduction <ul><li>The water cycle is a process that not only gives us water to drink, fish to eat, but also weather patterns. </li></ul><ul><li>A weather pattern is day to day condition such as temperature, cloud iness and rainfall </li></ul><ul><li>Water is an important part of our environment and takes up much of our Earth’s surface </li></ul><ul><li>KEY WORDS: </li></ul><ul><li>condition= act/event in this example it is weather </li></ul><ul><li>temperature= hot/cold </li></ul><ul><li>cloudiness= many clouds </li></ul>
  10. 10. VOCAB <ul><li>Evaporation : where a liquid, such as water, changes into a gaseous ( like air) state becoming water vapor . Heat increases the rate of evaporation. </li></ul><ul><li>Condensation : occurs when a gas is changed into liquid. This happens when the temperature decreases (opposite of evaporation) </li></ul>
  11. 11. Precipitation : raindrops fall to the earth. This happens from the processes of evaporation and condensation -rain, snow, ice (are all forms of precipitation) Infiltration: where rain water soaks into the layers of the ground
  12. 12. Transpiration: the final process where plants absorb the water from the soil. Water then moves to the leaves of the plant and is then evaporated into the air [called transpiration]
  13. 13. Overview of the Water Cycle
  14. 14. THE CYCLE cycle= repeated process <ul><li>Water is constantly being cycled between the atmosphere (vapor gasses in the air create an atmosphere), the ocean and the land. </li></ul><ul><li>The cycle is an important process that helps us continue life on Earth. </li></ul><ul><li>STEP 1: water is evaporated </li></ul><ul><li>The e vapor ation causes vapor to rise in the air </li></ul>
  15. 15. <ul><li>STEP 2: </li></ul><ul><li>The vapor* forms clouds through the process of condensation </li></ul><ul><li>STEP 3: </li></ul><ul><li>The clouds move over the land and precipitation falls in the form of rain, snow or ice </li></ul>*Remember: vapor is the gas form of water into the air
  16. 16. <ul><li>STEP 4: The precipitation then goes through the process of infiltration once it lands on the ground and soaks into the layers of the earth </li></ul><ul><li>(Infiltration is like a sponge absorbing water. The dirt soaks up the precipitation just as sponge would soak up water) </li></ul><ul><li>STEP 5: The cycle is repeated </li></ul>
  17. 17. REVIEW <ul><li>Write down the process that each number represents in #2-5 </li></ul>2. Condensation 3. Evaporation 4. Precipitation 5. Infiltration
  18. 18. REVIEW <ul><li>Who can tell me what precipitation is? </li></ul><ul><li>Who can define evaporation/condensation? </li></ul><ul><li>What is the process that absorbs the water into the ground (we used a sponge as an example of this) </li></ul>