Another Water Experiment

Pretty cool :)

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24 comments posted so far. Expand all comments Login to add a comment.

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1. Comment rated too low. Show this comment kozy 4 years ago

this can't be serious :(

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2. SilverPT 4 years ago

I need someone to explain this lol

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4. Voutelamberopipi 4 years ago

disclaimer: only try this with bowls of water

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5. kainim 4 years ago

pepper floats because of the surface tension (same way water striders can walk on water)
soap breaks the surface tension so the pepper sinks (if there were water striders in the bowl, they would drown too)

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6. Crash0 4 years ago

#1 and #2, didn't you learn anything in school?

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7. shayangx 4 years ago

Ok going to do that right now..!

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8. dvh 4 years ago

Don't try this at home!

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9. CrackrJak 4 years ago

It all has to do with Surface Tension.

Soap makes water 'Wetter', Allows it to break up into much smaller particles. This is way soapy water gets your clothes clean, It allows the water to soak through instead of beading up.

The pepper is floating on the outside 'skin' of the water, Initially, The soap destroys that 'skin' and then because the top of the surface of the water is curved the pepper slides down the sides till it reaches the rim of the bowl.

This is not magnetic or electric repulsion.

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10. Maffis 4 years ago

do not try this at home. it's very dangerous and might explode.

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11. TheProfessor 4 years ago

Thank you for those words of caution from Maffis. Experiments such as this ought to be perfectly safe, but please remember to follow the instructions precisely. Any deviation might prove disasterous.

Do NOT use petrol instead of water!
Do NOT sprinkle on granules of gunpowder instead of pepper!
Do NOT insert a lighted match intead of your finger!

Remember. Safety first!

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12. JamMan 4 years ago

Just tried this and it didn't work cos the bits of pepper were too big :( Need really fine pepper for success!

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13. shayangx 4 years ago

I tried it and it works!

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14. spetzialist 4 years ago

Seriously this is soooooooooo old..

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15. Usdevildoggmc 4 years ago

#3 explains it pretty well but I think it could of been explained with half the text =D

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16. BMX_Tavi 4 years ago

#6 maybe they are americans :))))))

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17. erg5hp 4 years ago

that happens when I walk into a room full of people . . .

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18. Noobeater 4 years ago

Used to do this with ants when I was a kid. Sorry ants.

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19. nooitaf (admin) 4 years ago

#12 It doesn't have to be pepper. Any dark fine powder would do it.

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20. eNdEmiOn06463 4 years ago

There are tons of little experiments you can do with surface tension. Just look 'em up. I like the one with the little boat being propelled by a drop of soap.

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21. kutless429 4 years ago

I don't know what that is, thus I rather not stick my finger in it...

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22. kainim 4 years ago

#15, mine was the shortest :D

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23. m3a9m 4 years ago

You must had been bored much that u started fingering the water >:)

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24. NathaneM 4 years ago

it is very common scheme used by dish washing liquid products. >:)