Pepper and Water | Science Experiments for kids | Pepper and soap trick
Ever tried a magic trick at home??
This is a magic trick that you can easily master if you understand the concept of surface tension.
For this
You’ll need:
• Liquid dish washer gel
• Water
• Bowl
• Grounded black pepper
Procedure:
• Take the bowl and fill it with water
• Sprinkle some pepper over the water
• Dip your finger into it and observe. Nothing will happen to the pepper present in the bowl.
• Now, put some liquid dish washer gel on to your finger
• Now slowly dip the finger with the gel into the bowl in the center
• You’ll notice that the pepper which is sprinkled over the water moves away from the finger and rushes back to the outer edge of the bowl.
Explanation:
The pepper floats on the top of water due to surface tension of the water. The surface tension pulls the top of the water together like a skin, so the water bulges up a bit.
Surface tension is the result of the strong attraction between molecules in a liquid. Water has an unusually high surface tension compared with most other liquids because water molecules are very strongly attracted to each other. This strong attraction allows the water to bulge up a bit and makes some insects to skate on its surface.
When the dish washer gel is put into water the surface tension of the water gets ruptured and the bulged part of the water spreads out. So water molecules on the surface are pulled towards the ends of the bowl when the detergent comes in contact with water.
When the surface tension of water breaks, the top most molecules of water spread out and in the process they take the pepper particles away thus making it look as if they are running away from the liquid soap.
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It does that because you're gay
I’m finna do a 8th grade science project on this
Super
VERY GOOD AND VERY HELPFUL I WAS SEARCHING FOR A COOL EXPERIMENT AND THIS IS WHAT I NEED THANK YOU 🙂
super
Pepper has oil in it. The oil swims on water.
What is the application of this experiment?
thank u sooo much
thumbs up when your where because of the demon magacian.
thank you so much! you saved my 1st grading project in science
Wonder if this would work with something other than pepper…like fine glitter.
look experiment worked out but pepper just gone
anyway good……………………..
Back in my day, this was a racist joke to demonstrate how to get the blacks (though that wasn't the word used) to the other side of the pool while the whites swim. (Use salt or your imagination.)
Simple and effective demonstration.
what if u boil the water
The best ever expire net in the world
Awesome experiment! I'm definitely using this for my science fair project.
HELPFUL
you put too much pepper good job though
when i was in 6th grade this kid named leo drank this. yep, he drank it. he was okay though
Helps a ton
Thankssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
thanks for letting me know i had a sience experiment
sorry to say this but it is bad sooooooorrry
Kinda bad
Niggerhands.
this is a great project for my little sister to show at her school!!!!!! thaks of the explanation!!!
This is totes awesome! I'm so gonna do this for the upcoming science fair at school 😀
you need like 5 or 6 more watermarks
The black pepper is "grounded"? Was it naughty?
it worked thats so cool
would you say cohesion is involved ?