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How do You Make a Leak-Proof Bag? Fill a plastic Ziplock bag about 3/4 full with water. Stick a few sharp skewers through the bag one by one. Watch in amazement as your punctured bag does not leak! Slowly pull the skewers or pencils out of the bag to see what happens!

The leak proof bag is a high interest activity to introduce your children to polymers, specifically a polymer called low-density polyethylene leak proof bag experiment(LDPE). And if you don’t care to get into the nitty gritty of the science, it just makes for a really fun experience.

This science experiment demonstrates how polymer chains work, and it looks just like magic to little ones. Why won’t the bag leak when it has huge holes in it? Kids will love this mixture of messy play and science and it’s perfect for the combination of curious kids and a warm afternoon.

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Since dermagel degrades relatively quickly, youll probably want to pour the plaster into your mold as soon as possible. The plaster I used is measured by weight in a ratio of 45 grams of water for every 100 grams of plaster (however,。

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