Floating eggs

In this activity, students investigate water density by floating eggs in freshwater and saltwater.

By the end of this activity, students should be able to:

• discuss the concept of density

• discuss how salt increases the density of water

• explain why an egg sinks in freshwater but floats when salt is added.

Equipment for experiment

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The equipment required for the floating egg activity includes: ice cream containers, eggs and salt.

Rights: The University of Waikato Te Whare Wānanga o Waikato

Download the Word file for:

• introduction/background notes

• what you need

• what to do

• extension idea.