Amazing Leakproof Baggie Magic Science Experiment
What do you think will happen if you puncture a baggie full of water with a sharp object? You may think all the water will come squirting out! In this fun and easy science experiment, we’re going to show you how to puncture a baggie full of water with sharpened pencils and keep it from leaking. Being able to push sharp objects through a baggie full of water and not have it leak may seem like magic but we will show you it’s just science.
- Plastic zip close baggie.
- Pencil sharpener
- Several pencils
- Optional – food coloring and biodegradable glitter
- Use the pencil sharpener and carefully make each pencil as sharp as possible.
- Fill the zip close plastic baggie about three quarters of the way full with water.
- Optional – Add a little food coloring and glitter for fun.
- Push any air out of the baggie.
- Seal the baggie securely.
- Hold the baggie firmly out in front of yourself.
- Use your other hand to push a pencil through the baggie so it pokes out the other side.
- Continue stabbing the pencils through the baggie, being sure to leave the pencils in the baggie.
How it Works:
Plastic zip close storage baggies are very flexible. The baggies are made of a polymer called low density polyethylene. The sharpened pencils are able to squeeze through the chains of polymer without breaking them and the baggie is actually so flexible it is able to seal around the pencils preventing water from escaping.
Make This A Science Project:
Try using a balloon. Try using a plastic grocery baggie. Try using a medical glove. Try adding very warm water to the baggie.