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

Many germs spread by our hands, and often times, people don't wash their hands well enough to get rid of germs.

In this chemistry activity (on page 2 of the PDF), learners make a layered drink with liquids of different densities.

In this chemistry activity, learners prepare two petri dishes, one filled with water and one filled with milk.