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Our Chemical Senses: Olfaction
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In this activity, learners investigate the olfactory system by conducting several experiments.

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.

Biochemistry Happens Inside of You!
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In this four-part activity, learners explore how the body works and the chemistry that happens inside living things.

Scented Dough
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In this activity, learners follow a recipe to create play dough scented with fruit-flavored drink mix.

Follow the Scent
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In this outdoor, sensory activity, learners role play as animals trying to identify their "family's" scent and locate their "territory." Learners mark their territories and sniff out other territories

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).

Delicious Smelling Chemistry
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In this activity, learners use household materials to investigate and explore their ability to smell an odor.

Horton Senses Something Small
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In this story time program, young learners listen to the Dr.