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Surface Tension Experiment

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When I was in grade school, my teacher did a really simple pepper experiment with us to teach us about surface tension.  Water has a surface that lets light things float on top, and when you add something dense, like soap to it, it breaks the water tension, and the pepper shows it well because the water will move away from the popped area and the pepper goes along with it.

All you need is:

1 drop of dish soap


and a bowl of water


1. Take your bowl of water and sprinkle the pepper in (as you can see in my photos my son added a whole lot, we were sneezing for five minutes!)


2. Take your soap and gently squeeze one drop into the middle of the bowl.


3.  Watch it disperse instantly, your little one will be amazed.

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Since water is transparent, most lessons involving it can be confusing to a small child because it’s hard to imagine, with this my son instantly understood how it all worked.

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About Carlie Kercheval

Carlie Kercheval is a happily married stay-at-home homeschooling mom. She and her college sweetheart have been blessed with 3 precious children to raise while traveling the world as a military family. Carlie is the founder of Today's Frugal Mom™, So You Call Yourself a Homeschooler?™ and Managing Your Blessings. Carlie and her husband co-author the Learning to Speak Life™ family Bible studies and together they co-host the Learning to Speak Life™ Radio Show. When she is not busy enjoying her family and the great outdoors, you can typically find her cozied up somewhere under a blanket with a good book. You can connect with her on Facebook, Pinterest, and Twitter.