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Fix-It Tool Kit on a Keychain

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4M Science Kits Sale: Great summer projects!

UFO Solar Balloon

Product#: 13216

(1 customer reviews)

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Regular Price: ~~$59.99~~
Today's Price: $35.00

A solar balloon is a balloon that is filled with air and gains buoyancy because the air inside the balloon has been heated by radiation from the sun. The black balloon material absorbs the heat of the sun’s rays, causing the air inside the balloon to expand and reduce in density compared to the air outside of the balloon, giving it buoyancy. This balloon functions just like a hot air balloon, with the sun acting as the heat source. The UFO Solar Balloon makes an excellent gift, and is highly recommended for the classroom setting.

Features:

Solar balloon (expands to 10 feet long x 2 feet diameter)
Comes with 60 feet of string and a helpful instruction sheet
Excellent for use as a science project to demonstrate solar energy

Warning: Not intended as a toy for children. Operation requires adult supervision.

Recommended for ages 10 and older.

Box Size: 10.50in (26.67cm) x 6.00in (15.24cm) x 1.00in (2.54cm)
Weight: 0 lb 4 oz ( 0.10 kg )

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Experience this sphere powered by the sun!

Customer Reviews

This thing really works!
Posted on: Jul 8 2011 by: Richard from US, OR, Portland

Ok, so this is a giant tube made of garbage bag material. You fill it with air and tie the ends. Put it out in the sun and it fully inflates and starts rising up. Ours went up almost 30 feet! Really cool. All the neighbor's kids were coming to our house once they saw it in our front yard.


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