1. Water and Life Properties of Water

2. Polarity 1.Draw a Molecule and Label the Charges 2. How do Water Molecules interact or affect one another?

4. Hydrogen Bonding 1.What happens when Water Molecules Hydrogen Bond to one another? 2. Why is this important?

6. Water the “UNIVERSAL SOLVENT” 1. What is a Solvent? 2. What substances can water dissolve? 3. Why is Water called the Universal Solvent? 4. Why is the ability to dissolve important to living things?

7. Salt in Water

8. Physical State How does the position and motion of water molecules change as temperature increases? 1. Solid - ICE 2. Liquid 3.Gas- Vapor

9. Ice

10. Density Changes and Water Temperature List the states of Water from Most dense to least dense: ____________ How do these changes affect living things?

11. Temperature and Specific Heat 1.What is Specific Heat? 2.How is the Specific Heat of Water different from other liquids? 3. How does this affect the Earth’s temperatures? 4. How does this affect the temperature of organisms?

12. Blue Planet = Warm Planet

13. Chemical Reactions Water is needed for many chemical reactions that occur in living things 1.Identify one critical chemical reaction that requires water. 2. Why is this chemical reaction critical to all of the life on earth?

14. Water = Food for Life

15. Adhesion 1.What is Adhesion? 2. Provide examples of where water molecules adhere or stick to surfaces. 3. How does Adhesion affect organisms?

16. Water droplets stick to leaf

17. Cohesion 1.What is Cohesion? 2. How does cohesion affect organisms?

18. Droplets formed from Cohesive Forces

19. Surface Tension 1.What is Surface Tension? 2. Give an example of Surface Tension. 2. In what ways does Surface Tension affect life on earth?

20. Surface Molecules Hold Together