1. Slide 1 of 20

2. Slide 2 of 20 Structure & Function in Water Transport What structural feature of water enables it to be transported upward? What structural feature of plant vessels enables water to be transported upward?

3. Slide 3 of 20 Structure & Function in Water Transport What structural feature of water enables it to be transported upward? Hydrogen bonding Cohesion + Adhesion What structural feature of plant vessels enables water to be transported upward? Hydrophilic walls to enable adhesion Narrow walls to maximize adhesive forces

4. Slide 4 of 20 Evaporative Cooling Water has high specific heat due to? Responsible for cooling Heat is released as liquid is vaporized into gas Highest energy molecules are vaporized first Vaporization involves the breaking of which bonds?

5. Slide 5 of 20 Evaporative Cooling Water has high specific heat due to? Hydrogen Bonds Responsible for cooling Heat is released as liquid is vaporized into gas Highest energy molecules are vaporized first Vaporization involves the breaking of which bonds? Hydrogen Bonds (not really a bond)

6. Slide 6 of 20 Water Which is more dense, liquid or solid H 2 O? As temperature increases, what happens to density? Why? What does this mean for ocean stratification? Which temperature (Celsius) is H 2 O the most dense?

7. Slide 7 of 20 Water Which is more dense, liquid or solid H 2 O? Liquid (ice floats) As temperature increases, what happens to density? Density decreases (Inverse Relationship) Why? Increase Temp Increase in KE Interferes with H- bonds H2O molecules more spread out What does this mean for ocean stratification? Coldest water = Densest At bottom of water column Which temperature (Celsius) is H 2 O the most dense? 4°C

8. Slide 8 of 20 Properties of Water 1. There are two cities, Davie and Pompano Beach, which will have a higher temperature during summer? Why can we not use Weston instead of Davie? 2. What bonds are broken during evaporative cooling? 3. What force is responsible for cohesion? 4. What force is responsible for adhesion?

9. Slide 9 of 20 Properties of Water 1. There are two cities, Davie and Pompano Beach, which will have a higher temperature during summer? Why? Davie since it is farther from the ocean (large body of H 2 O) Why can we not use Weston instead of Davie? Weston is next to a huge body of water: Everglades 2. What bonds are broken during evaporative cooling? H-bonds 3. What force is responsible for cohesion? H-bonds 4. What force is responsible for adhesion? H-bonds