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A warm, sunny day is recommended to do this activity.
Take students outside on the playground and have them sit in a circle.
Unfold the black deflated solar bag in the center of the circle.
Ask students to problem solve variables to be considered in order to make the black solar bag fly.
Choose one student to take the solar bag and run with it. When it is full of air, tie off the ends.
Place the semi-filled solar bag in the middle for further observations.
As the sun heats the air inside the solar bag, have students record in their journal what is happening and encourage them to make conjectures explaining what is happening in regard to conduction, convection, and radiation. Note:Make sure to tether the solar bag with string so it does not fly away—especially with wind present. Caution:Read all safety directions on your solar bag.
Have several students share their conjectures and discuss how the three means of heat transference all work together simultaneously to make the solar bag fly.
Answer the questions to this assignment in a Word file. Save the file in the appropriate place on the network. Then, upload the completed file to this assignment link by clicking the Submit Assignment button in the upper right hand corner of this window. Proofread your work carefully before you submit it.