1. Water Properties

2. Water
Structure of water: “polar molecule” with one oxygen and two hydrogen atoms
The hydrogen end is positive and the oxygen end is negative

3. Covalent Bonds
Covalent Bonds: strong bonds that hold a water molecule together
Form between O and H in the same water molecule

4. Hydrogen Bonds
Hydrogen Bonds: weak bonds that make water stick to other water
Form between H and O in different water molecules

6. Properties of Water Polarity
Description: one end of a water molecule is negative and the other end is positive

7. What happens because of it?
Water is attracted to other polar molecules

8. Properties of Water 2. Universal Solvent
Description: Most solids and gases will dissolve in water

9. What happens because of it?
Hydrophobic: will not dissolve
Hydrophilic: will dissolve

10. Properties of Water
3. Adhesion Description: Water sticks to other polar molecules

11. What happens because of it?
Capillary Action: Water “climbs” up surfaces

12. Properties of Water 4. Cohesion
Description: Water molecules stick to other water molecules

13. What happens because of it?
Surface Tension: The surface of water resists forces and pressure

14. water in space

15. Properties of Water 5. Density
Description: Water is the only substance that gets less dense when it freezes

16. What happens because of it?
ICE FLOATS!

17. Properties of water
6. High heat capacity Description: water takes more energy to heat up than most liquids

18. What happens because of it?
Water holds its temperature well

19. Properties of Water
7. Neutral pH Description:

20. What happens because of it?
Most organisms need a neutral pH to live