The document discusses the properties and importance of water. It describes water's polarity allows it to have adhesive and cohesive properties which are important for trees. Water is a universal solvent that can dissolve many polar and non-polar substances like sugar, salt, and molecules that are essential for cellular functions and transport in living things. As a solvent in blood and sap, water enables metabolic reactions and movement of dissolved materials throughout organisms.

5. Dihydrogen Monoxide
H2O

6. Wonderful Water
Essential to Life

7. Structure of water
TedEd on Water https://youtu.be/ASLUY2U1M-8

8. Ice Floats?

9. Polar vs Nonpolar C55H98O6

10. Cohesion
How many drops of each will fit on a penny?
Water Alcohol Oil

11. Adhesion
The water and cup trick!

12. Trees?
Describe how water’s polarity causes water to have adhesive and cohesive
properties.
Describe how adhesion and cohesion are important to trees

14. Universal Solvent
What is a sugar cube made out of?
Is it polar or non-polar?

15. Universal Solvent
Solvent vs. Solute
Observe sugar in water, alcohol, and oil

16. Universal Solvent
Solvent vs. Solute
How does the structure of
water allow it to dissolve
things?

17. Universal Solvent
Solvent vs. Solute
Dissolving salt

18. How do individual cells rely on water as a solvent?
Dissolved molecules
allow metabolic reactions to happen
solutes diffuse through water (low to high concentrations)

19. How do you (humans, and other animals, and
plants) rely on water as a solvent?
Dissolved oxygen and carbon
dioxide, etc
bloodstream/xylem
membranes must stay moist for
molecules to dissolve across
them