The challenge is to blow a balloon inside a plastic bottle. A big bottle works better but y ou can use a small bottle if you want. But is ...

Another demonstration. So simple but so interesting What we need: straight pins, water, toilet paper, bowl. How to: Fill the b...

QUESTION: Will the CO2 released from a water with gas bottle be strong enough to take to the surface 6 raisins? What we need: transpar...

With water, and a cardboard you can do a little magic with your restless. This water is defying gravity. Thats because the air in it can...