Report, Discuss, and Reflect (~2.5 hrs.)
Heat Transfer in Your Life - Set aside several pages in your journal to keep a running log of your encounters with heat transfer in your everyday life. This week, describe three examples of convection.
Due by Wednesday in the Discussion Forum
Make diagrams and annotate them using arrows and words to describe where heat is transferred. Then imagine that you could look at these experiences through a “molecular microscope.”
Post your investigation report from the assignment. Include a Logger Lite temperature graph for your convection cooling strategies.
Due by Saturday in the Discussion Forum
Read your colleagues’ reports and discuss them. Is the evidence compelling? After reading all of the reports, discuss new insights that you have.
The discussion question asks you to synthesize all the pieces of your science investigation. Your responses to the question and to one another should draw upon and reference your work in this session.
Reflect on this week's work
After the discussion wraps up, look back at this week's goals, read What's the Big Idea?, and reflect on your work this week.
What's the Big Idea?
The big idea in this session on convection is that energy can be transferred by the movement of the material itself. On a particle scale this means that faster moving molecules colliding with slower moving molecules will tend to transfer energy to the slower moving ones. This idea should help you think through at least one of this week's challenges and prepare you to understand more deeply how convection differs from other forms of energy transfer.
Questions for Reflection
- What do you think is the most important thing you learned from this week's activities?
- What surprised you? Why?
- What questions are you left with?