Solar Bag
Fri, Jan 18, 2013
Materials: A cool sunny day. Steve Spangler's Solar Bag, big trash bags, big dry cleaning bags.
Activity: Solar Bag Activity: Inflate bag. Close it with a rubberband. Tie a long string on the end, so you can keep it from flying away. If your bag has hole, patch it with packing tape. Take the bag in a sunny spot. Watch the bag rise! Trash Bag / Dry Cleaning Bag Activity: Inflate the bags. Close them with a rubberbands. Tie a strings to the plastic bags. Place some bags in sunny spot. Watch the bags for ten minutes. Feel how hot the outside of the bag is. Deflate the bag and feel how hot the air inside is.
Research Questions: How does sunny or shady location affect how hot the bag feels or how it rises? How does the color of the bag affect how hot the bag feels?
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