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Learn the amazing secret for filling this 8 foot long bag with air in only one breath! Kids explore the Bernoulli Principle, air pressure, lift, gr...

Nature’s most destructive force can be observed and enjoyed! Rotate the Pet Tornado clockwise and watch the funnel form! Will make a great gift for...

Two 2 liter bottles plus one tornado tube equals one tornado in a bottle! Great hands on tool for a demonstration of vortex action. Add food colori...