Science for Kids: Layered Liquids

The experiment is called Layered Liquids. The premise is simple, heavy liquids sink and lighter ones float, and you can magically “layer” them.

Layered Liquids


  • Jars
  • Cookie sheets
  • Molasses
  • Cold water
  • Food Coloring
  • Oil
  • Kosher salt
  • Spoons


  • Place the jar in the middle of a cookie sheet.
  • Pour some cold water into your jar and let the kiddos add some drops of food coloring.
  • Stir
  • Add about a 1/2 cup of oil to the jar. Tip: I let the kids hold the spoon/measuring cup while I poured in the liquids
  • Then add 1/4  cup or so of molasses to the jar
  • Since I know salt adds a bubbly gooey element when mixed with oil I let the kids put spoonfuls of kosher salt into the jars. It briefly created some lava lamp like bubble magic then sank to the bottom to form a sticky molasses/salt concoction. No matter the kids liked adding the salt the best! Go figure!
  • Let them experiment with stirring up the ingredients and watching them settle again.

Have fun!

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