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Are balloons porous or non-porous? In this activity, learners watch an entertaining Mr. O video and conduct a simple experiment to find out.

In this activity (2nd activity on the page), learners explore how the nose is responsible for part of the flavor we taste in food.

Use this hands-on activity to demonstrate infrared and thermal radiation.

This quick demonstration (on page 11 of PDF) allows learners to understand why scientists think water ice could remain frozen in always-dark craters at the poles of the Moon.