LEQ: What are the properties of water?

1
LEQ What are the properties of water?

• Assignment Reading 2.2, 32.1
• Activator glaciers
• What are your opinions on global warming?
• Later summarize how ice can be used as a
  biological record of history
• Key terms cohesion, adhesion, solvent

2
Hydrogen bonds are responsible for unique
chemical properties.

• Chemical properties
• cohesion
• sticks to itself
• adhesion
• sticks to other things
• versatile solvent
• universal

3
Hydrogen bonds are responsible for unique
properties

• Physical properties
• States
• liquid, gas
• Solid ice formation
• Floatation!
• Specific heat
• stays cool, hot
• stores energy
• moderates temperature
• boiling, freezing
• Surface tension
• elastic (next slide)!
• capillary action

4
Possible sentences

• Pretend that you are writing to a person who has
  little or no scientific expertise
• Explain to them the significance of water to life
  on Earth using three vocabulary terms or less
• Clarify any term you use by providing an example,
  analogy, etc.
• Share your responses with your group

5
Summary

• List three properties of water
• Explain how hydrogen bonds contribute to these
  properties