1. Today Monday 9/14/15 you will…
Explain why the special properties of water make it essential for life.
Predict the effect of pH
You need
ISN
Something to write with
FBI- Water Properties
Bell Work
Glue water FBI to the TOP of ISN page 20
Glue Water POGIL to ISN pg 21
Glue Graphing Practice to ISN pg 14
Water Concept Map= Study Guide

2. Reminders You have a Mini-Summative on water properties tomorrow!!
Lab reports are due by the end of the day on tomorrow

3. Did you know?

4. The oxygen end has a - charge The hydrogen end has a + charge.
Polarity
Universal Solvent
Cohesion
Surface Tension
Adhesion
Capillary Action
Density
High Specific Heat

5. Water is an excellent Solvent Ex. Kool-aid
Polarity
Water is an excellent Solvent Ex. Kool-aid
Universal Solvent
Kool-aid Mix Water = Oh Yeah!
Cohesion
Surface Tension
Adhesion
Capillary Action
Solute Solvent = Solution
Density
material added to the liquid that will dissolve (The smaller amount)
Liquid that items are added to (The Larger amount)
Liquid that all materials are distributed equally
High Specific Heat

6. Water is attracted to itself
Polarity
Water is attracted to itself
Universal Solvent + -
Cohesion is the attraction of molecules
of the same substance
Cohesion
Surface Tension
Adhesion
Capillary Action
Density
High Specific Heat

7. Water attraction (cohesion) forms a thin ‘skin’ barrier on surface.
Polarity
Cohesion at work
Universal Solvent
Water attraction (cohesion) forms a thin ‘skin’ barrier on surface.
Cohesion
Surface Tension
Adhesion
Capillary Action
Density
High Specific Heat

8. Attraction of water to other materials
Polarity
Attraction of water to other materials
Universal Solvent
Cohesion
Surface Tension
Adhesion
Capillary Action
Density
High Specific Heat
Ex. Water sticking to a glass, Water droplets on a car, water droplets on a window or wall

9. Adhesion and cohesion together cause
Polarity
Adhesion and cohesion together cause
water to move against gravity
Universal Solvent
Cohesion
Surface Tension
Adhesion
Capillary Action
This is how water moves up plant’s stems!
Density
High Specific Heat

10. Water EXPANDS upon freezing  making it less dense so it FLOATS!
Polarity
Water EXPANDS upon freezing 
making it less dense
so it FLOATS!
Universal Solvent
Cohesion
Surface Tension
Adhesion
Capillary Action
Density
High specific Heat

11. Homeostasis Water… Absorbs heat slowly Retains heat / Energy Longer
Hydrogen Bond
Water…
Absorbs heat slowly
Retains heat / Energy Longer
maintains temp. of Earth
maintains temp. of Organisms
Homeostasis
Universal Solvent
Cohesion
Surface Tension
Adhesion
Capillary Action
Density
High specific Heat
Energy Storage

12. High Specific Heat: High Heat Capacity
Water absorbs a lot of heat before it is affected
Why do we care?
HOMEOSTASIS!!!  maintaining internal stability/balance
Maintains temp. of earth

13. Importance of Specific Heat capacity
Helps in regulating temperatures in a pond:
This same concept can be expanded to a world-wide scale.
Oceans & lakes help regulate the temperature ranges…
Water near cities, take longer to heat up & longer to cool, so cities near the oceans will tend to have less change & less extreme temps than inland
Midwest states, such as Nebraska, will have colder winters & hotter summers than cities on coast!
Fish stay “happy” because the heat capacity means the temp. of the pond will stay relatively the same from day to night.

14. Great Review of Water Properties
Properties of Water
Video Clip
Great Review of Water Properties

15. Water Quiz - Question 1 Name The property:
I washed my car yesterday. When I finished rinsing it off, it still looked wet and there were all these droplets of water stuck to my car. Even on the windshield that is sloped.

16. Water Quiz - Question 2
3. Water is considered ___________ because it has a positive and negative end.

17. Water Quiz - Question 3
4. When water is attracted to itself, like forming a droplet.

18. Water Quiz - Question 4 5. A solution is made of what two items

19. Water Quiz - Question 5 7. What property is described?
I saw a bug walking across the water! He didn’t sink through, and it looked like the water bent underneath it.

20. Water Quiz - Question 6
8. Areas of land along a large lake or an ocean, seem cooler than other areas near them. What property of water proves this to be true?

21. Water Quiz - Question 7
9. What type of bonding occurs between hydrogen atoms and other types of atoms?

22. Water Quiz - Question 8
10. What property of water is described? I put blue food coloring in my vase of roses. 2 days later my roses turned purple!

23. Water FBI -Top of ISN pg 20
Complete the table checking ALL properties that apply
Polarity
Cohesion
Adhesion
High Specific Heat
Solubility
Density
Surface Tension
Water climbs on paper with tip in water
Water drops mound when piled on a penny
Ice floats on a pond
A bug walks across your pool and a needle floats
Water doesn’t mix with oil
Water boils at 212F (100C)
Water can travel from roots to tops of tallest tree
Animals can cool themselves by sweating or panting
Two water drops placed next to each other “merge” into one big drop
Water dissolves polar substances, like salt
Meniscus forms in measuring cup of water
Warmer by the ocean at night during the winter

24. A small change in pH makes a HUGE difference
Basic
Copy pH
scale onto
the bottom of
ISN pg 20