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In this activity (4th activity on the page), learners test to see if saliva is necessary for food to have taste.

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

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

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

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