2 Convection in the atmosphere Sun shines on a large parking lotThe blacktop absorbs some of the radiant energyWhat might happen to the part of the atmosphere close to the parking lot?TG-P.172
3 Convection ChamberIce represents the cold temperatures of the atmosphereTG-P.172Candle represents a hot location on earth’s surfaceSmoke allows you to see the moving air
4 Convection ChamberAfter observing the convection chamber draw a diagram showing the movement of smoke and air in the chamber on page 29 of your lab book.On your diagram, explain how convection occurs in the convection chamber.TG-P.173Student Lab Notebook P.29
5 The process repeats itself How Convection Occurs?Smoke loses heat by conduction when it touches the metal coverSmoke becomes less dense and rose to the coverSmoke was colder and more dense, so it sankTG-P.173Student Lab Notebook P.29Moved across the bottom to the candle where it is heatedThe process repeats itselfagain and again
6 Molecular ModelFluids becomes less dense as its temperature increases!Fluids become more dense (denser) as their temperature decreases.TG- p.168Student Lab Notebook P.27
7 Convection Cell on Earth How can what you observed in the convection chamber translate to a convection cell on earth?Draw a model showing a convection cell on earth and explain how heat would transfer in this convection cell.
8 Convection Cell on Earth Radiation heats Earth’s surfaceCool air contracts and becomes more denseWarm air expands and becomes less denseTG-PStudent Lab Notebook P.29Air above surface is heated by conduction and reradiation
9 Convection CellThe cycle of air where warm air expands and rises, and then air cools and falls back to Earth.TG-PStudent Lab Notebook P.29