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Twenty Questions

Twenty Questions. Science 8: Fresh and Salt Water Systems. Twenty Questions. 1. How much of the water in the world is Fresh Water?. 3%. 2. What is it called when water changes state from a gas to a liquid?. Condensation. 3. The largest supply of fresh water can be found in.

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Twenty Questions

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  1. Twenty Questions Science 8: Fresh and Salt Water Systems

  2. Twenty Questions

  3. 1. How much of the water in the world is Fresh Water? • 3%

  4. 2. What is it called when water changes state from a gas to a liquid? • Condensation

  5. 3. The largest supply of fresh water can be found in • Glaciers and Ice sheets

  6. 4. Striations, Cirques, horn, and aretes are all examples of • Glacial erosion

  7. 5. What is a Watershed? • A drainage basin, the area of land that drains into a body of water.

  8. 6. How does the ocean get its salt? • From rivers and groundwater flowing over rocks pick up salts from the rocks and carry them to the ocean.

  9. 7. What features of the sea floor are related to plate movements? • Ocean ridges and Trenches

  10. 8. As a wave reaches the shore the what happens to wavelength and wave height? • Wavelength shortens and Wave height increases.

  11. 9. How do waves shape the shorelines? • Waves shape shorelines by eroding and redepositing sediments.

  12. 10. What is the difference between Neap tides and Spring tides? • A neap tide creates smaller tidal movements; whereas spring tides create larger tidal movements.

  13. 11. Tidal movement is linked to what celestial body? • The Moon.

  14. 12. What are 3 factors that influence the direction of winds and surface currents? • 1. Uneven heating of the atmosphere • 2. Rotation of the Earth • 3. The Continents

  15. 13. In what directions do westerly winds drive currents? • From the west to the east (Clockwise)

  16. 14. Gills are an example of? • An adaptation for aquatic animals

  17. 15. What is the name of plant plankton? • Phytoplankton

  18. 16. When the concentration of a toxin is magnified this is called • Biomagnification

  19. 17. What is the process some bacteria use to change chemicals into food and oxygen? • Chemosynthesis

  20. 18. Hard water contains more __________ and __________ than soft water • Calcium and Magnesium

  21. 19. What is the role of a bioindicator species? • Sensitive species whose numbers can show the health of an ecosystem

  22. 20. Water quality standards are set for? • 1. drinking water for people • 2. protection of organisms living in water • 3. drinking water for livestock • 4. irrigation for crops • 5. recreation

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