In this lesson, students observe that different bodies of water can be found around the Earth, and that water can be liquid or solid. In the activity, Arctic Adventure, students explore the Arctic and gather observations of how Arctic animals interact with water in many different ways.
In this lesson, students explore the incredible ability of water to reverse back and forth between solid and liquid states, depending on temperature. In the activity, Ultimate Undo Showdown, students make observations of other materials and their properties after being heated up and then cooled down. They use these observations as evidence that some changes are reversible and some are not.
We suggest students work in pairs. Homeschool students can work on their own.
Extend This Activity & Observe More Materials
Continue observing properties to discover other materials that have the Power to Undo.
In the extensions, we have a bonus matchup of the Ultimate Undo Showdown!
You can find the worksheet and step-by-step instructions in the Extend This Lesson box found on this page.
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