Introduction: Get ready for an exciting science experiment that will leave you amazed! Join us as we explore the fascinating world of polymers and discover why a simple plastic bag can defy gravity. With just a few supplies and a curious mind, let's dive into the Leak-Proof Bag Science Experiment!
Materials Needed:
Sharpened pencils
1 Zip lock bag
Water
Procedure:
Carefully pour water into a zip lock bag from a jug. Hold the bag over a vessel to avoid making a mess in case of spills.
Now, take a sharpened pencil and poke it through the middle of the bag. Observe what happens.
Try poking another pencil through the bag and see if you get the same result.
Finally, poke a third pencil through the bag.
Why Does This Happen? The plastic bag is composed of long chains of molecules known as polymers, which give it its stretchy properties. When a sharpened pencil pierces through the bag, these long polymer chains quickly seal around the pencils, creating a tight seal within seconds. This prevents any water from leaking out, despite the presence of holes created by the pencils.
Conclusion: Through this simple yet captivating experiment, we've uncovered the secret behind the leak-proof plastic bag. It's all about the remarkable properties of polymers and their ability to form tight seals around objects. We hope you enjoyed this experiment and gained a deeper understanding of the science behind everyday materials. Keep exploring, keep experimenting, and let your curiosity lead the way!
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