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  1. 1. WATER !
  2. 2. Water on Earth <ul><li>All the water that is found on Earth forms the planet’s hydropshere. </li></ul><ul><li>The existence of water is one of the characteristics that makes Earth different from any other planet in the Solar System. </li></ul>
  3. 3. Types of Water <ul><li>Salt Water </li></ul><ul><ul><li>Found in the ocean and makes up 97% of the water in the planet. </li></ul></ul><ul><li>Fresh Water </li></ul><ul><ul><li>Found in rivers, lakes, etc. </li></ul></ul><ul><ul><li>Makes up the rest of the Earth´s water (3%). </li></ul></ul>
  4. 4. Game Review !!! <ul><li>What is the term/name for all the water found on Earth? </li></ul><ul><li>a.) Geosphere </li></ul><ul><li>b.) Atmosphere </li></ul><ul><li>c.) Hydrosphere </li></ul><ul><li>* Answer: C </li></ul><ul><li>What are the TWO types of water? </li></ul><ul><li>* Answer: Salt Water & Fresh Water </li></ul>
  5. 5. The Different States of Water: Liquid <ul><li>Liquid </li></ul><ul><ul><li>Found in the sea/ocean, rivers, lakes, & underground water currents </li></ul></ul>
  6. 6. The Different States of Water: Solid <ul><li>Solid </li></ul><ul><ul><li>Also known as ice or snow. </li></ul></ul><ul><ul><li>Found in the North & South Pole as well as in mountain summits. </li></ul></ul>
  7. 7. The Different States of Water: Gas <ul><li>Gas </li></ul><ul><ul><li>Also known as water vapor. </li></ul></ul><ul><ul><li>Found in the atmosphere (clouds, sky, etc.) </li></ul></ul>
  8. 8. States of Water
  9. 9. Game Review !!! <ul><li>Name the 3 states of matter from hot to cold. </li></ul><ul><li>* Answer: 1. Gas 2. Liquid 3. Solid </li></ul><ul><li>Where do you usually find the solid state of water? </li></ul><ul><li>* Answer: North & South Pole </li></ul><ul><ul><li>What part of the mountain do you find solids? </li></ul></ul><ul><li>*Answer: Mountain Summit </li></ul>
  10. 10. States of Matter: Evaporation <ul><li>Water evaporates in the liquid state. </li></ul><ul><ul><li>It becomes water vapor (gas) because of the heat of the sun. </li></ul></ul><ul><ul><ul><li>Water vapor disperses in the air and combines with other gases. </li></ul></ul></ul>
  11. 11. States of Matter: Condensation <ul><li>When water vapor goes all the way up into the atmosphere, it freezes and condenses. </li></ul><ul><ul><li>It turns into small drops of water (liquid state) and forms the clouds in the sky. </li></ul></ul>
  12. 12. Game Review !!! <ul><li>Water evaporates in the _______ state but then turns into the _____ state because of the heat of the sun. </li></ul><ul><li>* Answer: Liquid; Gas </li></ul><ul><li>What is formed during the condensation state? </li></ul><ul><li>* Answer: Clouds </li></ul>
  13. 13. States of Matter: Precipitation <ul><li>When the temperature is low, the clouds become solid. </li></ul><ul><ul><li>The precipitation falls and forms snow and hail (solid state). </li></ul></ul>
  14. 14. States of Matter: Melting <ul><li>When the ice and snow, with the heat of the sun, melt and turn into the liquid state . </li></ul>
  15. 15. Water Cycle Melting
  16. 16. Game Review !!! <ul><li>During which part of the water cycle do the clouds become solid ? </li></ul><ul><li>* Answer: Precipitation </li></ul><ul><ul><li>Why do they become solid? </li></ul></ul><ul><li>* Answer: The temperature is low. </li></ul><ul><ul><li>What forms during this stage? </li></ul></ul><ul><li>* Answer: Snow & Hail </li></ul><ul><li>Put in order the 5 steps of the Water Cycle. </li></ul><ul><li>* Answer: 1. Evaporation 2. Condensation 3. Precipitation 4. Melting 5. Cycle starts over. </li></ul>
  17. 17. Rivers !
  18. 18. Rivers ! <ul><li>Rivers are very important processes responsible for changing the surface of the planet. </li></ul><ul><ul><li>Erosion </li></ul></ul><ul><ul><li>Transport of materials </li></ul></ul><ul><ul><li>Excavation of valleys </li></ul></ul>
  19. 19. The Course of a River <ul><li>http://www.youtube.com/watch?v=7q4YTpa3Bwg </li></ul><ul><li>“ Angel Falls, Venenzuela” </li></ul>
  20. 20. The Stages of a River <ul><li>What is a river? </li></ul><ul><ul><li>A natural stream of water that goes to either an ocean, lake, or another body of water. </li></ul></ul><ul><li>A river typically goes through 3 distinct stages: </li></ul><ul><li>1. Upper Course </li></ul><ul><li>2. Middle Course </li></ul><ul><li>3. Lower Course </li></ul>
  21. 21. Game Review !!! <ul><li>What is a river? </li></ul><ul><li>* Answer: Natural stream of water that goes into an ocean, lake, or body of water. </li></ul>
  22. 22. The Upper Course ! <ul><li>Begins high up in the hills and mountains. </li></ul><ul><li>The flow is very fast at this point because the slope is very steep. </li></ul><ul><ul><li>It has a lot of strength. </li></ul></ul><ul><li>Transportation of materials (rocks, pebbles, etc.) </li></ul>
  23. 23. The Upper Course ! <ul><li>Erosion begins </li></ul><ul><ul><li>Wearing away of land </li></ul></ul><ul><ul><li>Forms V-Shaped Valleys </li></ul></ul><ul><li>http://www.bbc.co.uk/schools/riversandcoasts/rivers/change_river/pg_10_flash.shtml </li></ul>
  24. 24. Erosion forming a V-Shaped Valley.
  25. 25. The Middle Course ! <ul><li>Slope is not as steep, it is more horizontal. </li></ul><ul><li>Wider and deeper because of erosion. </li></ul><ul><li>Transportation of materials continues. </li></ul>
  26. 26. The Middle Course ! <ul><li>Amount of water increases. </li></ul><ul><li>Small rivers called tributaries form. </li></ul><ul><ul><li>These are small rivers that flow into the main river. </li></ul></ul>
  27. 27. The Lower Course ! <ul><li>By this stage, the river is very wide & deep. </li></ul><ul><li>Surrounding land is flat. </li></ul><ul><li>Water is slow. </li></ul>
  28. 28. The Lower Course ! <ul><li>River strays away into a U-shape . </li></ul><ul><ul><li>This is where flooding (overflow of water) occurs. </li></ul></ul><ul><ul><li>A lot of towns and cities are close to this part of the river. </li></ul></ul><ul><li>*How can this cause problems? </li></ul>
  29. 29. The Lower Course ! <ul><li>When the river comes to an end, it flows into the sea. </li></ul>
  30. 30. Game Review !!! <ul><li>In order, name the three stages of a river. </li></ul><ul><li>* Answer: 1. Upper Course 2. Middle Course 3. Lower Course </li></ul><ul><li>During which course does the river flow the fastest? </li></ul><ul><li>* Answer: The Upper Course </li></ul><ul><li>During which course is the surrounding land flat? </li></ul><ul><li>* Answer: The Lower Course </li></ul>
  31. 31. Game Review !!! <ul><li>Which course of the river is this picture? </li></ul><ul><li>* Answer: The Middle Course </li></ul><ul><ul><li>What are the small rivers called? </li></ul></ul><ul><li>* Answer: Tributaries </li></ul>