Cool Science for Kids: Exploring the Density of Liquids w/ Salt~ BuggyandBuddy.com
This is a great experiment to show different densities of liquids. Have students record their predictions then watch as students create a rainbow in a glass. Liquids with higher densities will sink to the bottom while lighter liquids will go to the top.
Floating eggs experiment
Activities: Teach Density with Kitchen Science
Rainbow Density Experiment uses only sugar water and food coloring. Includes alignment with Ohio standards.