Use a connector to connect a bottle with about 3/4 of water and an empty bottle, shake the bottle horizontally 4-5 times, then you will see the vortex in the bottle rotate. You can put coloring or washing powder is added to the water in the bottle, so that the little tornado you create has different colors and bubbles, which is more interesting
Experiment: It is a great educational and fun experiment activity tool for school classes, homeschoolers and scouts. It can help increase the intelligence of the kids, stimulating kids interest to physics and study
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Metro Postage - $12.00 rural and regional surcharge may be applied additionally. Rural & PO Box Postage - $16.50 Express Post 5kg - $25.00 Delivery Australia Wide
Express Post Large (5kg) satchels are are designed for items weighing up to 5kg. Dimensions: 435 x 510mm. Sendle 25kg Postage Metro Areas - $36.95 Delivery Australia WideClick & Collect - $0.00 Collect from warehouse U6/73 Walters Drive Osborne Park. Call to arrange time 0409 799 144