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Floating Eggs Experiment

August 7, 2017 by Nadia van Zyl Leave a Comment

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Do this simple floating eggs experiment (“eggsperiment”) with your young kids to explain water density and add a little scientific “magic” to your day! 
 

Floating eggs experiment

You will need:

  •  2 glasses
  •  2 eggs
  • Water
  • spoons
  • salt
  • And two willing scientists?
Supplies needed


The most rewarding thing to see is how children experience something for the first time. Sometimes, adults take things as common and forget that there was a time we also didn’t know what we know now.

Egg in water

For these 2 cousins that is what happened with 2 glasses of water 2 eggs and salt. First, we filled the 2 glasses with the same amount of water. We added 5 teaspoons of salt to one glass. As we were busy, I asked them to count with me as we poured the salt in. Then I gave each one of them an egg to hold. We first placed the egg in the clear water and noticed that the egg looks very big in the water and we also noticed that the egg sinks to the bottom. 
 

So, when we placed the second egg in the water the boys were quite surprised that this egg floated. They pushed it down but it wouldn’t stay down it just jumped up again.  I asked them why does this egg bounce up again but this one was not, they were very clever and answered because there is salt in the water. (Jippeeee lesson learned) The salt changes the water’s density- a big word for them!

Egg in salt water


They were very chuffed with themselves after making such a wonderful discovery, thinking of it as “Magic”. When they are older they would understand the concept of water density better, for now, magic it is!

floating eggs experiment

A lovely floating eggs experiment to do at home to explain water density in a hands-on way! PS: Have you seen this “Magic” Powder Experiment?

Contributed by Natasha Joubert

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Hi! I'm Nadia! A teacher and a mommy of two, who loves to be creative and share easy activities you can do at home with your kids too! Read More…

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