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The Kid Should See This

How to make a self-starting siphon

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To move liquid from one container to another, you may need a siphon, a bent tube with one end that’s lower than the first. Suction is one way to get the liquid moving through it, but if you don’t have a pump and you don’t want to suck on the end of the tubeβ€”something to avoid with liquids you don’t want to breathe or drinkβ€”how can you get the liquid moving?

In this clip from Australia’s The Curiosity Show, which ran from 1972 to 1990, science educator Dr. Rob Morrison demonstrates how a self-starting siphon can move the liquid with relative ease. And after you’ve seen the physics, you can make your own self-starting siphon with some bendy straws.

Avoid plastic straws with these compostable, plant-based bendy straws.

Then watch more from The Curiosity Show: Matchstick Triangle Puzzle and how does a music box work?

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