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Our Chemical Senses: Olfaction
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In this activity, learners investigate the olfactory system by conducting several experiments.
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Sniffing for a Billionth
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This is an activity (located on page 4 of the PDF under What's Nano? Activity) about size and scale.
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Exploring Size: Scented Balloons
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In this activity, learners use their sense of smell to explore the world on the nanoscale.
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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.
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Exploring Size: Scented Solutions
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This is an activity in which learners will find that they can detect differences in concentration better with their nose (smelling) than with their eyes (seeing).
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Horton Senses Something Small
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In this story time program, young learners listen to the Dr.