08-24-18

• looked at topographic maps
• with a partner, label the geological features of world map:
  1. mountains
  2. volcanoes
• oceanic crust vs continental
  • isostasy: denser objects sink, less dense objects float
  • in class demonstration of ice & water
  • predict the density of ice given that:
    1. ice floats in water and water has a density of 1g / cm^3
    2. ice sinks in alcohol and alcohol has a density of .8g / cm^3