1. Water Chemistry
By: Dawn Bodinski

2. The States of Water
3states:
solid
liquid
gas

3. Water Density Most liquids contract (get smaller) when colder.
Water is different.
contracts until it reaches 4 ⁰C expands until solid.
Solid less dense than liquid
ICE FLOATS!

4. Cohesion
Water is attracted to other water.
cohesion.

5. Cohesive properties Surface tension
name given to the cohesion of water molecules at the surface of a body of water.
allows water striders to 'skate' across the top of a pond.

6. Adhesion
Water can also be attracted to other materials.
adhesion.

7. Adhesive properties Capillary action
like water rising in a straw
Plants use this to pull water from the ground
From the roots water is drawn through the plant by another force, transpiration.

8. Shape
Bent
Causes polarity
(-) end
(+) end

9. Polarity O2 end (-) charge H end (+) charge. HYDROGEN BONDING
The attraction between the + and – ends
MAGNETS

10. Thermal Properties Slow to heat up Slow to cool down
takes a lot of energy to raise temperature
Makes great coolant
Slow to cool down
takes a lot of time to release energy
Makes great insulator

11. Universal Solvent
can & will dissolve MOST everything
(Grand Canyon)

12. Universal Solvent How it dissolves Polarity
Disassociates atoms: SEPARATES THEM