The air inside a balloon is under pressure as it is squeezed by the rubber.
Water bottle fountain experiment explanation.
The higher pressure outside the bottle forces the water up.
Making a fountain in water bottle without electricity and pump is one of the very good and easy science projects for kids to understand the air pressure system and basics of fluid mechanism.
These kinds of science projects help kids a lot to learn various science principles in easy and creative manner with lot of fun.
When you place the inflated balloon on top of the bottle the air pressure on top of the bottle becomes higher.
You may want to.
Fill the bottle up about 1 4th 1 quarter with water.
That pushes down on the water in the bottle pushing it through the straw and making the fountain stronger.
Empty water bottle balloon straw blu tac or similar tray for catching the water optional.
A combination of gravity and atmospheric pressure drives the water through the hose even if parts of the hose.
The water in the basin contains gravitational potential energy and as it falls downwards it uses the pneumatic pressure of the air in the air supply container to push the water in the upper fountain supply container.
This experiment allows children to see that air takes up room and is always present even though we can t see it.
Make a non stop water fountain out of 3 plastic bottles and straws.
A clean plastic bottle try to use one with smooth sides water vegetable oil or you could use mineral or baby oil instead fizzing tablets such as alka seltzer food coloring watch scientist joe as he makes the lava lamp experiment here.
Once the water drops below the level of the outlet tube in the fountain supply the heron fountain will stop.
A siphon is a way to carry water uphill without the use of pumps.
Create a miniature fountain in a bottle with a straw adhesive putty and the nifty physics of thermal expansion.
Pour the vegetable oil in the bottle until is almost full.
This really cool self pouring liquid science trick is a great experiment to try at home.