2- THE WATER DISPENSER CHALLENGE

Hi again scientists!

Here is another science challenge you can try. It requires some crafting skills, but it is easy enough.
It all has to do with AIR PRESSURE. Do you want to try?

#CHALLENGE 2# THE WATER DISPENSER

You will need:
1- A plastic bottle
2- A straw
3- A balloon
4- A pen-knife or a sharp knife (be careful!)
5- Some tape (Sellotape or duct tape)
6- Some water or any other liquid

click for the video