Formula: H 2 O Water is Polar: (+ / -) Only Mixes with other polar substances Solutions Capillary Action Surface Tension Energy Storage Acids/Bases Cohesion Adhesion Hydrogen Bond

Formula: H 2 O Water is Polar: (+ / -) Only Mixes with other polar substances Solutions Capillary Action Surface Tension Energy Storage Acids/Bases Cohesion Adhesion Hydrogen Bond

Hydrogen Bonds The oxygen end has a - charge The hydrogen end has a + charge. Solutions Capillary Action Surface Tension Energy Storage Acids/Bases Cohesion Adhesion Hydrogen Bond

Water is an excellent Solvent Ex. Kool-aid Solutions Solute + Solvent = Solution Kool-aid Mix + Water = Oh Yeah! Solutions Capillary Action Surface Tension Energy Storage Acids/Bases Cohesion Adhesion Hydrogen Bond material added to the liquid that will dissolve Liquid that items are added to Liquid that all materials are distributed equally

Cohesion Water is attracted to itself Solutions Capillary Action Surface Tension Energy Storage Acids/Bases Cohesion Adhesion Hydrogen Bond Cohesion is the attraction of molecules of the same substance

Surface Tension Solutions Capillary Action Surface Tension Energy Storage Acids/Bases Cohesion Adhesion Hydrogen Bond The ability of the surface of a liquid to hold lightweight objects because the force of the distributed weight is not as great as the attraction between molecules Cohesion at work

Adhesion Attraction of water to other materials Ex. Water sticking to a glass, Water droplets on a car, water droplets on a window or wall Solutions Capillary Action Surface Tension Energy Storage Acids/Bases Cohesion Adhesion Hydrogen Bond

Capillary Action This is how water moves up plant’s stems! Solutions Capillary Action Surface Tension Energy Storage Acids/Bases Cohesion Adhesion Hydrogen Bond Adhesion and cohesion together cause water to move against gravity

Acids Bases Higher concentration of (H+) Taste sour 0-6 on the pH scale Ex. Stomach Acid Higher concentration of (OH-) Taste bitter feel slippery or soapy react with oils and grease Ex. Bleach Water Solutions Capillary Action Surface Tension Energy Storage Acids/Bases Cohesion Adhesion Hydrogen Bond + -

Solutions Capillary Action Surface Tension Energy Storage Acids/Bases Cohesion Adhesion Energy Storage Hydrogen Bond Water… Absorbs heat slowly Retains heat / Energy Longer maintains temp. of Earth maintains temp. of Organisms Homeostasis

Water Quiz-Question 1 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.

Water Quiz-Question 2 2. Acid or Base? Sour taste. Lots of H+ ions. A 3 on the pH scale

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

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

Water Quiz-Question 5 5. A solution is made of what two items __________ + ____________ = solution

Water Quiz-Question 6 6. Acid or Base? Bitter taste. Lots of OH-. Used as cleaners.

Water Quiz-Question 7 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.

Water Quiz- Question 8 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?

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

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