Leakyproof Bag

Have you ever seen a filled ziplock bag with holes, but doesn’t leak?! Test out the Leakproof Bag Experiment and find out! Ziplock bags are made out of chains of molecules also known as polymers. The specific type of polymer for ziplock bags are known as polyethylene (LDPE). When the pencil pokes through, it only separates the chains of molecules, but does not completely break the chains of molecule, so the water does not leak!