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In this activity, learners smell bottles containing bee pheromone molecules (or herb/spice extracts as a substitute). Bees release these molecules to send messages to each other.

This is an activity about our sense of smell and how it compares to sharks' super noses. Learners will create varying solutions of water and perfume.

Learners smell balloons filled with different scents to guess what's inside. From this, they infer the presence and motion of scented molecules.

In this activity, learners investigate the olfactory system by conducting several experiments.

Learners use a mortar and pestle to extract clove oil from cloves using denatured alcohol. They put this oil on paper, which they can take home.

In this fun and in depth hands-on experiment, learners test various liquid samples (distilled water, lemon juice, vinegar, and baking soda mixed with water) to determine their pH levels and identify e

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

This activity (on page 3 of the PDF under GPS: Animal Scent Activity) is a full inquiry investigation into animal behavior.

In this activity, learners investigate the touch sensory system and discover how to plan and carry out their own experiments.

In this experiment, learners will conduct chemical and physical tests to identify mystery substances.

In this activity (2nd activity on the page), learners explore how the nose is responsible for part of the flavor we taste in food.

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

In this activity, learners build models of comets, using edible materials, to learn about comets' structure.

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

Learners make kimchee or sauerkraut, which is really just fermented cabbage, in a 2-liter plastic bottle.

In this outdoor, nighttime activity, learners gather around a brightly lit, white surface and study the behavior of nocturnal animals attracted to the light, particularly night fliers.

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