GEOLOGY 322 - OCEAN SYSTEMS

Video 6
 Water: A Miraculous Substance

Water is a solvent:

• Measuring salinity:
• Is pure water very conductive?  
• What happens when you add salt?
• What does this have to do with nerves?

Water and Heat:

• What do they mean when they call water a "chemical magnet"?
• What is heat capacity?
• What is unique about water's heat capacity?
• Why is this important for the Earth's climate?
• What is latent heat?
• What are the three physical states of water?
• Which is heavier, solid or liquid water?
• Is this unusual?
• Why is important for the earth's climate?
• Why is it important for life?
• Why is water's latent heat important for earth's climate?
• What do hydrogen bonds have to do with surface tension?  Does this matter for life?

Water and Life:

• What percentage of humans is water?
• What percentage of a jellyfish is water?
• Why was the ability of water to  dissolve chemicals important to the origin of life on earth?
• What does the term photosynthesis mean?