Water: A Vital Resource 6 th  Grade Science  KMS
Goal & Starter <ul><li>Goal </li></ul><ul><ul><li>I will describe in writing and verbally, why water is such an important ...
How do people use water? <ul><li>With your table partner / group read the following and be prepared to report on how peopl...
How do people use water?  (video clip)
Goal & Starter <ul><li>Goal </li></ul><ul><ul><li>I will describe in writing and verbally, why water is such an important ...
Why is water so important to life?  (p 19 -20) Type of Water % ml Earth 100% 1000 Salt Water 97% Ice 76 % of 3% Shallow Gr...
How much fresh water do we have? <ul><li>With your group complete the “Sharpen your Skills Activity” p. 20 </li></ul>Type ...
What is the structure of water? <ul><li>Hydrogen (a gas by itself) </li></ul><ul><li>Oxygen (a gas by itself) </li></ul><u...
What is a water molecule?  (video clip)
Surface Tension <ul><li>Tightness across surface of water </li></ul><ul><li>Water molecules “stick together” like magnets ...
Surface Tension <ul><li>From a height of about 10 cm drop one drop of one liquid on your wax paper watch what happens when...
Capillary Action <ul><li>Water molecules attraction to each other + attraction to surrounding materials </li></ul><ul><li>...
States of Water <ul><li>Solid-  </li></ul><ul><ul><li>Molecules (Mlc) close-together  </li></ul></ul><ul><ul><li>Water for...
States of Water <ul><li>Liquid </li></ul><ul><ul><li>Mlc move more freely </li></ul></ul><ul><ul><li>Water takes shape of ...
States of Water <ul><li>Gas </li></ul><ul><ul><li>Mlc move very freely </li></ul></ul><ul><ul><li>Spread out & fill space ...
 
Density <ul><li>Each box has the same volume.  If each ball has the same mass, which box would weigh more? Why?   </li></ul>
Density <ul><li>The box that has more balls has more mass per unit of volume (DENSITY) </li></ul><ul><li>Density= Mass/Vol...
Density Practice <ul><li>A certain rock has a mass of 4 g and a volume of 2 ml what is the density? </li></ul>
Soda Comparison: Diet vs Regular <ul><li>The mass of a can of soda is _____ the volume of the can of soda is ________ the ...
Soda Comparison Mass Volume Density Diet Soda Regular Soda
Density Hypothesis <ul><li>Your group will receive a vial with salt water and a vial with fresh water. Write a hypothesis ...
Density  <ul><li>The mass of a vial of fresh water is _____ the volume of the vial of fresh water is ________ the density ...
Density Activity Mass Volume Density Salt Water Fresh Water
Density <ul><li>Based on your calculations, do you want to change your hypothesis?  </li></ul>
Factors that Effect Density  <ul><li>Dissolved solids (Salt, Minerals, etc.) </li></ul><ul><li>Temperature </li></ul><ul><...
Calculate and Determine Which of the Following Could Be The Same Substance Substance Mass Volume Density A 6g 2ml B 200g 4...
Answers Substance Mass Volume Density A 6g 2ml 3 g/ml B 200g 40ml 5 g/ml C 2g 4ml 0.5 g/ml D 39g 13ml 3 g/ml
Water Properties: Solvent <ul><li>Solvent  </li></ul><ul><ul><li>A liquid that dissolves another substance </li></ul></ul>...
Solvent Activity <ul><li>Measure 100 ml of water into each of 4 beakers </li></ul><ul><li>Add 5ml of each of the following...
Solvent Activity <ul><li>Draw a picture and describe the results </li></ul>
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Water Notes

  1. 1. Water: A Vital Resource 6 th Grade Science KMS
  2. 2. Goal & Starter <ul><li>Goal </li></ul><ul><ul><li>I will describe in writing and verbally, why water is such an important resource. </li></ul></ul><ul><li>Starter </li></ul><ul><ul><li>List all the ways that you have used water or water has impacted you in the past year. </li></ul></ul>
  3. 3. How do people use water? <ul><li>With your table partner / group read the following and be prepared to report on how people use water: </li></ul><ul><ul><li>Agriculture (p 16) </li></ul></ul><ul><ul><li>Industry (p 17) </li></ul></ul><ul><ul><li>Transportation (p 17) </li></ul></ul><ul><ul><li>Recreation (p 18) </li></ul></ul><ul><ul><li>Home (p 17) </li></ul></ul>
  4. 4. How do people use water? (video clip)
  5. 5. Goal & Starter <ul><li>Goal </li></ul><ul><ul><li>I will describe in writing and verbally, why water is such an important resource. </li></ul></ul><ul><li>Starter </li></ul><ul><ul><li>Write a short paragraph (3-4 sentences) explaining how you can conserve (save) water in the upcoming week. </li></ul></ul>
  6. 6. Why is water so important to life? (p 19 -20) Type of Water % ml Earth 100% 1000 Salt Water 97% Ice 76 % of 3% Shallow Groundwater 12% of 3% Deep Groundwater 11 % of 3% Lakes and Rivers 0.34 % of 3% Water vapor 0.037% of 3%
  7. 7. How much fresh water do we have? <ul><li>With your group complete the “Sharpen your Skills Activity” p. 20 </li></ul>Type of Water % ml Earth 100% 1000 Salt Water 97% 970 Ice 76 % of 3% 22.8 Shallow Groundwater 12% of 3% 3.60 Deep Groundwater 11 % of 3% 3.30 Lakes and Rivers 0.34 % of 3% .1020 Water vapor 0.037% of 3% .0011
  8. 8. What is the structure of water? <ul><li>Hydrogen (a gas by itself) </li></ul><ul><li>Oxygen (a gas by itself) </li></ul><ul><li>2 H atoms + 1 O atom </li></ul><ul><li>Polar molecule (like a small magnet) </li></ul>
  9. 9. What is a water molecule? (video clip)
  10. 10. Surface Tension <ul><li>Tightness across surface of water </li></ul><ul><li>Water molecules “stick together” like magnets </li></ul><ul><li>Ex. (drops of water, paper clip floating, “cupside down” demo) </li></ul>
  11. 11. Surface Tension <ul><li>From a height of about 10 cm drop one drop of one liquid on your wax paper watch what happens when it hits the wax paper, move the wax paper around to make the drop follow the path. </li></ul><ul><li>Follow the same steps with a different liquid. </li></ul><ul><li>Record your observations and draw a picture of the differences. </li></ul><ul><li>Try to float a paper clip on the water and one other liquid </li></ul>
  12. 12. Capillary Action <ul><li>Water molecules attraction to each other + attraction to surrounding materials </li></ul><ul><li>Water can act against gravity </li></ul><ul><li>Ex. (water in plants, pores in bricks, paper towel) </li></ul>
  13. 13. States of Water <ul><li>Solid- </li></ul><ul><ul><li>Molecules (Mlc) close-together </li></ul></ul><ul><ul><li>Water forms “set” structure </li></ul></ul><ul><ul><li>Vibrating in place (cold) </li></ul></ul>
  14. 14. States of Water <ul><li>Liquid </li></ul><ul><ul><li>Mlc move more freely </li></ul></ul><ul><ul><li>Water takes shape of container </li></ul></ul><ul><ul><li>Mlc medium speed & temp. </li></ul></ul>
  15. 15. States of Water <ul><li>Gas </li></ul><ul><ul><li>Mlc move very freely </li></ul></ul><ul><ul><li>Spread out & fill space </li></ul></ul><ul><ul><li>Move fast (Hot) </li></ul></ul>
  16. 17. Density <ul><li>Each box has the same volume. If each ball has the same mass, which box would weigh more? Why? </li></ul>
  17. 18. Density <ul><li>The box that has more balls has more mass per unit of volume (DENSITY) </li></ul><ul><li>Density= Mass/Volume </li></ul><ul><li>Density = grams/milliliter </li></ul><ul><li>http://www.edinformatics.com/math_science/density.htm </li></ul>
  18. 19. Density Practice <ul><li>A certain rock has a mass of 4 g and a volume of 2 ml what is the density? </li></ul>
  19. 20. Soda Comparison: Diet vs Regular <ul><li>The mass of a can of soda is _____ the volume of the can of soda is ________ the density is _________ </li></ul><ul><li>The mass of a can of diet soda is _____ the volume of the can of diet soda is ________ the density is _________ </li></ul>
  20. 21. Soda Comparison Mass Volume Density Diet Soda Regular Soda
  21. 22. Density Hypothesis <ul><li>Your group will receive a vial with salt water and a vial with fresh water. Write a hypothesis about what you think will happen when both are placed in a tank of water. </li></ul>
  22. 23. Density <ul><li>The mass of a vial of fresh water is _____ the volume of the vial of fresh water is ________ the density is _________ </li></ul><ul><li>The mass of a vial of fresh water is _____ the volume of the vial of fresh water is ________ the density is _________ </li></ul>
  23. 24. Density Activity Mass Volume Density Salt Water Fresh Water
  24. 25. Density <ul><li>Based on your calculations, do you want to change your hypothesis? </li></ul>
  25. 26. Factors that Effect Density <ul><li>Dissolved solids (Salt, Minerals, etc.) </li></ul><ul><li>Temperature </li></ul><ul><ul><li>Hot water is less dense </li></ul></ul>
  26. 27. Calculate and Determine Which of the Following Could Be The Same Substance Substance Mass Volume Density A 6g 2ml B 200g 40ml C 2g 4ml D 39g 13ml
  27. 28. Answers Substance Mass Volume Density A 6g 2ml 3 g/ml B 200g 40ml 5 g/ml C 2g 4ml 0.5 g/ml D 39g 13ml 3 g/ml
  28. 29. Water Properties: Solvent <ul><li>Solvent </li></ul><ul><ul><li>A liquid that dissolves another substance </li></ul></ul><ul><li>Solute </li></ul><ul><ul><li>Substance that is dissolved (Salt, Sugar, etc.) </li></ul></ul>
  29. 30. Solvent Activity <ul><li>Measure 100 ml of water into each of 4 beakers </li></ul><ul><li>Add 5ml of each of the following to each of the 4 beakers: Salt, Sand, Powdered Drink Mix, Oil </li></ul><ul><li>Write a hypothesis stating which substances water will dissolve the best/worst </li></ul>
  30. 31. Solvent Activity <ul><li>Draw a picture and describe the results </li></ul>

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