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In this exercise (Activity #2 on page), learners test their distance vision to evaluate their overall eyesight.

In this activity, learners count and measure kidney beans to explore natural selection and variation. Learners measure the length of 50-100 beans.

In this activity, learners will explore how the human brain interprets environmental stimuli.

In this activity, learners cut wells in JELL-O© and load the wells with different detergent solutions.

Learners take a field trip along a local body of water and conduct a visual survey to discover information about local land use and water quality.