Our teacher Mr Walker chose me to do an experiment on water pressure so if you want to try this then get the following:
2 jars one small,one large
Water, as much as you want in each jar and or cup
A pencil and paper for notes
Now blow gently at the surface of the water now listen
If there's a bubbly noise and it's nice and light your doing it right.
Blow at the bottom of the cup or jar and listen to the noise it should be a
Ruff but light sound
Now which way is it harder to blow top or bottom?
It should be the bottom because the pressure is pushing it down.
For example-If you were at the bottom of they ocean the weight on top of
You would be like a elephant on top of your fingernail and so that's why a submarine or any other under water vehicle has to be tuff .You should now try it,
With the bigger jar comment on this once you have tried it or tell your teacher to try it with your class room!
Location:HNS RM 1