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

Who would have ever thought that a plastic bag, some water, and a few pencils would have adults screaming with fear? learn how to poke holes in a plastic bag filled with water without spilling a drop.

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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