Harness the sun's heat to cook up a tasty treat.
http://pbskids.org/zoom/activities/sci/solarcookers.html
View sunspots through a telescope or 'pinhole' camera.
http://www.madsci.org/experiments/archive/854442556.As.html
wanted to know if SPF matters when you buy sun block. For example, does a CVS brand 30 sunblock work better than a CVS brand 15 sunblock?
http://youth.net/nsrc/sci/sci045.html#anchor781569
Is to help us understand how solar hot water heaters poerate.
http://www.k12.nf.ca/greenwood/virsci/Intermediate/Linnea/sunnyday.htm
Grom spikes of crystals in the sun.
http://www.exploratorium.edu/science_explorer/crystal.html
Before there were clocks, people used shadows to tell time.
http://www.exploratorium.edu/science_explorer/sunclock.html