Copy of HBWater Webquest 2020 PDF

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Download Copy of HBWater Webquest 2020 PDF

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Name Amy Nguyen

Block: C

Properties of Water Webquest To complete this webquest, use the links at http://water.usgs.gov/edu/waterproperties.html A. Click on ‘Facts about Water’. Read the page and answer the questions below. 1. What makes water so unique? Water is so unique because it’s the only natural substance on the Earth found in three physical states, liquid, solid, and gas at the temperatures found on earth.

2. Why is water called a ‘universal solvent’? Water is called universal solvent because it dissolves more substances than any other liquid.

3. What does it mean to have a pH of ‘7’? Pure water has a neutral pH of 7, which is neither acidic, less than 7, nor basic, greater than 7. 4. Can pure water be found in nature? ___No____ is pure water a good conductor of electricity? ___Does not conduct electrcity_____ 5. What does it mean to have a ‘high specific heat’? The water would absorb a lot of heat before it gets hot.

6. What does it mean to have a ‘high surface tension’? Water tends to clump together in drops

7. What does capillary action do for plants and animals? Capillary allows water and its dissolved substances to move through the roots of plants and through tiny blood vessels in our body. B. Click on the blue ‘Universal Solvent’ link in the ‘Water Facts’ section. Read the page and answer the questions below. 8. Why is water called a universal solvent? Water is called the "universal solvent" because it is capable of dissolving more substances than any other liquid.

9. Why is water being a universal solvent important to living things? This is important because wherever water goes, either through the air, the ground, or through our bodies, it takes along valuable chemicals, minerals, and nutrients.

10. What is a ‘polar’ arrangement? Polar arrangement allows the water molecules to become attracted to many other types of molecules

11. Explain how our kidneys filter water and how the universal solvent property is important in that process. Our kidneys filter water by washing through our kidneys and dissolves substances while taking them out of the body.

12. Explain why salt dissolves in water so easily. Salt dissolves so easily due to electrical charges and salt and water have the same charges

C. Go back to the ‘Facts about Water’ page. Click on either the ‘Cohesion’ or ‘Adhesion’ link. Read the page and answer the questions below. 13. What is cohesion?

14. What is adhesion?

15. Explain how cohesion and adhesion create water droplets that stick to things.

D. Go back to the ‘Facts about Water’ page. Click on the ‘Capillary Action’ link. Read the page and answer the questions below. 16. What is capillary action?

17. What 2 properties of water make capillary action possible?

18. Explain how plants and trees wouldn’t survive without capillary action.

19. Explain one other everyday example of capillary action.

E. Go back to the ‘Facts about Water’ page. Click on the ‘Surface Tension’ link. Read the page and answer the questions below. 20. What causes surface tension?

21. What is the definition of surface tension?

22. How does the surface tension of water compare to the surface tension of other liquids?

23. Explain 3 real life examples of surface tension a. ________________________________________________________________________ b. ________________________________________________________________________ c. ________________________________________________________________________ F. Go back to the ‘Facts about Water’ page. Click on the ‘Less Dense” link. Read the page and answer the questions below. 1. What is density?

Use the chart to answer questions 2 and 3. 2. When water is heated, what happens to its density? 3. When water freezes, what happens to its density? 4. How much does the density of water decrease when it is in a frozen state? 5. Why is water less dense when it is in a frozen state?

6. Why is the density of water so important to life on earth?

G. Go back to the ‘Facts about Water’ page. Click on the ‘pH’ link. Read the page and answer the questions below. 7. What can the pH of water in nature indicate? 8. What is pH? 9. How much more acidic is a pH of 5 compared to a pH of 6? 10. What is the importance of the pH of water to living things?

11. What number on the pH scale is the most acidic? _____ which number is the most alkaline? ______ 12. Where in the country is the water the most acidic? 13. Where in the country is the water the most basic or alkali? 14. What is the pH range of the water in Utah? H. Go back to the ‘Facts about Water’ page. Click on ‘Heat Index’ link. . Read  the page and answer the questions below.

15. What does it mean for water to have a high heat capacity?

16. How does the heat capacity of water help to regulate the climate and seasonal temperatures?...