Effect of melting ice on sea level: ice already in water vs ice on land
- Place two trays on larger tray.
- Place rock in one tray, place ice on rock;
- place ice in other tray without rock;
- fill both trays to lip with water.
- Predict what will happen when the ice melts (water will spill out of tray with ice melting on rock)
DON’T JIGGLE THE TABLE!
Effect of expansion of liquid when heated
- hand out regular liquid thermometers, one per student
- invite them to record initial temperature
- invite them to hold the bulb of the thermometer for 5 minutes and record new temperature
- invite them to propose a powerful idea to explain how a liquid thermometer works (liquids expand when heated)
- Discuss implications of ice melting on land (increase sea level)
- Discuss implications of thermal expansion of water when heated (increase sea level)
Ask for experiences friends and family are having on the east coast (Hurricane Sandy)
- Is there a connection?
- On computers: go to: http://sealevel.climatecentral.org/
- http://www.nj.com/hudson/index.ssf/2012/10/chaos_in_jersey_city_as_flood.html