Windbag™
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Product Number: SB28553M Price: $5.50In Stock. Usually ships in 24-48 hours. |
PRODUCT DETAILS
Seems impossible: inflate an 8 ft. long bag using only one breath of air. It’s a great science demonstration that illustrates the many properties of air. Each Windbag™ is 8 ft. long, 10 inches in diameter, and holds 44 liters of air. How can such a bag be inflated using only 1 breath of air? The secret is scientific, of course. The illustrated instructions include over a dozen fun and educational activities. Package includes four Windbags™. Grade 3 and up.
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