Water cycle ppt

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  • Water begins its journey in streams, rivers, ponds, lakes, and oceans.
  • Water cycle ppt

    1. 1. The Water Cycle Table of Contents: **Click on the picture next to each topic to discover more about the water cycle! After you’ve looked at each section, practice what you’ve discovered by learning The Water Cycle Song!** Enjoy your journey!! Evaporation & Transpiration Condensation Precipitation Putting it all together: THE WATER CYCLE The Water Cycle Song
    2. 2. Evaporation & Transpiration Both are caused by the sun’s heat. HOME Return to Table of Contents
    3. 3. Evaporation Water begins its journey as a liquid in streams, rivers, ponds, lakes, and oceans…even puddles! It is in a liquid state and sits on the earth because it is heavier than air. Return to Table of Contents
    4. 4. Evaporation When the sun heats up the water, the water turns into vapor, tiny molecules of water, and heads for the sky. When water evaporates it is lighter than air. Return to Table of Contents
    5. 5. Transpiration Just as we sweat, so do plants! Return to Table of Contents
    6. 6. Transpiration Plants absorb water from the soil. Each plant will use the water that it needs to help it grow. As extra water travels through the plant and to its leaves, it is pulled out and evaporated into the air. This process is called transpiration. Transpiration Return to Table of Contents
    7. 7. Condensation Have you ever noticed that if you pour a cold drink on a hot day, you get water on the outside of the glass? Return to Table of Contents
    8. 8. Condensation Did the water leak through the glass? No! It came from the air! Water vapor in the air became cooler when it touched the cold glass, causing it to became liquid again! Return to Table of Contents
    9. 9. Condensation When water vapor goes up into the air, it becomes colder and gathers with millions of other tiny molecules of water to create all of the beautiful clouds in our skies! Return to Table of Contents
    10. 10. Condensation Did you notice something about the process of condensation? It is the OPPOSITE of evaporation! It is the COOLING process that initiates condensation. It is the HEATING process that initiates evaporation. Why is that?! Return to Table of Contents
    11. 11. Precipitation Some things are just too heavy to hold! Return to Table of Contents
    12. 12. Precipitation We get precipitation when so much condensed water has become too heavy for the atmosphere to hold on to. Return to Table of Contents
    13. 13. Precipitation The clouds get so packed with water molecules that they become heavy and much colder. As the evaporation cools it turns back into water and falls down to the ground. Return to Table of Contents
    14. 14. Precipitation Precipitation falls in many forms… Rain Sleet Snow Hail Return to Table of Contents
    15. 15. Precipitation … and collects in and on the ground in the form of rivers, streams, lakes, ponds, and oceans. Return to Table of Contents
    16. 16. When water is heated enough it can evaporate or transpire and go into the air. It condenses until it is too heavy and cold, becomes liquid again, and falls down from the sky as a form of precipitation . What have we learned about The Water Cycle? Return to Table of Contents
    17. 17. Now, let’s put it all together into The Water Cycle First, we get heat from the sun… … which evaporates the water… … and precipitates once it cools and becomes heavy… … then collects in and on the earth. … that goes into the air and condenses… Thus, completing The Water Cycle! Return to Table of Contents
    18. 18. Return to Table of Contents
    19. 19. What does this all mean? What IS The Water Cycle? The Water Cycle is the Earth’s way of recycling the water on our planet! Return to Table of Contents
    20. 20. Now, it’s time to… Take the online quiz to see how much you’ve learned! Simply click on the picture above to get started! When you’re finished, print your results & return to this presentation. Return to Table of Contents
    21. 21. The Water Cycle Song Practice this song! We will sing & perform this song together next class! Set to “She’ll Be Coming ‘Round the Mountain” Water travels in a cycle, yes it does! (In class, we’ll hold hands and walk in a circle) Water travels in a cycle, yes it does! (In class, we’ll hold hands and walk in a circle) Return to Table of Contents
    22. 22. The Water Cycle Song It goes up as evaporation (hands straight up) Return to Table of Contents
    23. 23. The Water Cycle Song Forms clouds of condensation (hands clasp together) Return to Table of Contents
    24. 24. The Water Cycle Song Falls down as precipitation, yes it does! (Bring hands down & wiggle, imitating rainfall) Return to Table of Contents
    25. 25. THE END You have successfully completed this presentation on The Water Cycle! Make sure to print out your quiz results. Your homework assignment is to write a 1-paragraph paper about your favorite process of The Water Cycle & why. Bring both your results and paper to class. Return to Table of Contents

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