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In this activity, learners work in teams to study the observation skills essential to scientific research.

In this activity about olfaction (9th activity on the page), learners smell 10 different items with different odors, including some edible food items.

In this outdoor activity and observation game, learners hunt for a variety of textures, colors, odors and evidence of organisms in the activity site.

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

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

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 outdoor activity, learners work in pairs using their senses—especially touch—to learn more about individual trees.