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

In this activity (page 59 of the PDF), learners spin and observe false eyelashes in jars of water (prepared at least 1 day ahead of time) to investigate the effects of different types of motion on the

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

In this activity, learners create an electrical circuit and investigate how some dissolved substances conduct electricity.

In this activity, learners investigate the sense of hearing and plan and conduct their own experiments.