Aim: To stop water from leaking out of the bag.
Equipment:
- Sandwich bag
- A lot of pencils
Method:
- Fill the sandwich bag with water about halfway.
- Poke the Sandwich bag from one side to another.
Discussion:
A lot of plastic is flexible because they are made with polymer chains. As you poke the pencil through the bag, all the molecules in the polymer chains ( A polymer is a substance in which contain a large molecule that is formed with many repeating subunits.) will surround the pencil, sealing the hole tightly and preventing leaks. If you remove the pencil, all the molecules don't move to seal the hole, which will then allow the waters to escape from the bag.
Conclusion: Did it work? Would you do anything differently
The experiment that I did actually work, The only thing that I would try next time is to fill the bag fully up and see how many pencils it can take until the water escape.
