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Smelly Balloons

Smelly Balloons

Are balloons porous or non-porous? In this activity, learners watch an entertaining Mr. O video and conduct a simple experiment to find out. By placing spices and flavorings inside the balloon, learners can prove balloons are porous by using their sense of smell to detect the scents as they escape the balloon. This activity guide contains information about porous materials, nanosensors, and the sense of smell....

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