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So Salty!


Read to children I Wonder Why the Sea Is Salty and Other Questions about the Oceans by Anita Ganeri. Then try this simple experiment:

  • Fill two jars with water and add 3 to 4 tablespoons of Kosher salt to one jar. Label the jar "Salt Water."
  • Place a hard-boiled egg into each jar and compare what happens.
  • Continue adding salt to the salt water until the egg floats in the middle of the jar.

Note: Adding salt to the water makes the water denser than the egg, which allows the water to hold up the egg.


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Sue LaBella, Education World's early childhood editor, is a former teacher who loves writing activities and poems for young children. She lives in Connecticut with her family and her bulldog named Daisy.

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