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

In this wintertime outdoor activity, learners role play wolves tracking their prey by following scented trails.

This activity investigates how bark beetles can threaten forests by having learners estimate the number of infected trees from a photo.

In this activity, learners use their sense of smell to explore the world on the nanoscale.

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 activity about olfaction (8th activity on the page), learners smell 10 different items with different odors. Then they try to identify the smells when they are mixed together.

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

In this culinary activity, learners use multiple senses (sight, smell, touch, and taste!) to explore real seaweed samples.

Are balloons porous or non-porous? In this activity, learners watch an entertaining Mr. O video and conduct a simple experiment to find out.

In this activity, learners use their senses to collect information about a fruit and record their findings in a Science Journal.

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 activity about olfaction (7th activity on the page), learners use natural ingredients to concoct their own perfume.

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

In this two-part activity, learners use household items to smell the difference between some stereoisomers, or molecules which are mirror images of one another.

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 build models of comets, using edible materials, to learn about comets' structure.

In this matching activity (3rd activity on the page), learners use their sense of smell to match pairs of opaque containers filled with various smelly items like orange peel, roses, or moth balls.

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

In this activity on page 9 of the PDF, learners test how flavoring extracts move through the walls of a balloon.