Students will learn about density by adding different liquids to a graduated cylinder and seeing how they separate into layers. You can use almost any liquid but pick things that are different colors or add food coloring so students can see the layers separate.
(Cover image courtesy wikimedia.org)

Check out some other density labs in my store:
Dancing Raisins Lab
Volume vs. Mass Lab
Density of Water lab
Sink or Float lab
Density of Oil and Water lab

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