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In this activity (4th activity on the page), learners use their sense of smell to rate and arrange containers filled with different dilutions of a scent (like cologne or fruit juice) in order from wea

In this activity, learners use earthworms as "unknown creatures" from the South American jungle to find out how animals use senses.

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).

This is an activity (located on page 4 of the PDF under What's Nano? Activity) about size and scale.

In this activity (on page 5 of PDF), learners use dry ice and household materials to make scientifically accurate models of comets.

In this four-part activity, learners explore how the body works and the chemistry that happens inside living things.