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In this activity, learners make slides of onion cells and their own cheek cells. Use this lab to teach learners how to prepare microscope slides and use a microscope.

In this activity, learners describe an object they can’t see. After someone picks outs a few mystery objects and places them in a pillowcase, learners will investigate using only their hands.

In this activity (pages 17-31), learners are introduced to techniques that are used to determine the structures of solid materials.

Many of the genetic sequences found in the fruit fly genome are similar to those found in humans.