Lame experiments that made you giggle?

[Russia]

For instance the experiment/magic trick of grinding black pepper over a bowl of water and then putting soap on the tip of your finger without someone seeing. Then you proceed to stick your finger in the water and all the pepper rushes to the sides of the bowl...

If you do it correctly it looks like magic to your dim friend xD

 

(I believe it has something to do with the water and the oils in soap and blah blah blah.)

 

I would love to hear of any other cool experiments that are so simple you just can't help but love them.

[dean845]

not heard that one before!

 

i decided to put like 1/10 of a jar of pottasium is water it was funny until i noticed that my books were on fire oops!