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Smelly Balloons
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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.
The Nose Knows!
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In this activity on page 9 of the PDF, learners test how flavoring extracts move through the walls of a balloon.
Horton Senses Something Small
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In this story time program, young learners listen to the Dr.