1. Wonderful World of Water

2. H2OH2O Oxygen is more electronegative then hydrogen. Electrons move towards the oxygen giving it a slight (-) charge and leaving the hydrogens with a slight (+) charge.

3. Hydrogen Bonding The slight charges makes water polar. The polarity causes hydrogen bonding

4. High Boiling Point Why are the boiling points of H2O, HF and NH3 higher then similar compounds?

5. Phase Change Diagram Water Other What is different? Why?

6. Water vs Ice

7. Ice Density vs Water Density

8. Ice Floating on Water Why is it important that ice floats on water?

9. Ice Skating and Squeaky Snow