1. Water Rotating Lab Review
Radjewski

2. Station 1
Station 1
Phase change

3. Hydrogen bonding! Tighter Arrangement Of molecules Loose Arrangement

4. Station 2 Surface tension

6. Station 1
Station 3
Adhesion

8. Station 4 Density Station 1
Ice floats in the water because it is less dense. Ice is more dense than ethanol so it sinks to the bottom!
Density

9. Station 1
Station 5
Solvent

10. Station 1
Station 6
Cohesion

12. Capillary Action Station 7

14. Lab Water Chart Water Property Definition Explain Example in life
Polarity
Unequal charge distribution
Electronegativity, unequal sharing, tetrahedron, partial charges
Salt dissolves in water
Hydrogen Bonding
Weak intermolecular electrostatic attraction
Attraction between partial charges
puddles
Cohesion
Attraction of water molecules for each other
Hydrogen bonding
Transpiration, surface tension, Jesus Christ Lizard, water striders

15. Analysis Chart continued
Water Property
Definition
Explain
Example in life
Surface tension
Resistance to being stretched; ability to form sheath on surface
Hydrogen bonding
Water striders; Jesus Christ Lizard, paperclips on water
Adhesion
Attraction of water molecules for other molecules
Capillarity; transpiration
High specific heat
The heat required to raise the temperature 1 degree
Water changes temp. slowly; high boiling point
Boiling water; freezing water

16. Analysis Chart continued
Water Property
Definition
Explain
Example in life
High heat of vaporization
the amount of energy that is needed to turn a substance from the liquid state to the gaseous state
Breaking of H-bonds, good coolant; high boiling point
Sweating cools down organisms; transpiration
Good solvent
Dissolves many compounds
Dissolves by ionization
Koolaid, salt water
Phase Change
Solid to liquid to gas
Ice floats (less dense); change in crystal lattice
Ice layer on ponds; snow;