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Using pipe cleaners, straws, and beads, learners explore the building blocks of life by creating their own model of DNA.

In this activity on page 1 of the PDF, learners compare the relative sizes of biological objects (like DNA and bacteria) that can't be seen by the naked eye.

In this activity, learners construct a cereal chain as a model of how proteins are made in the cell.

This activity is about collecting and analyzing DNA as part of a criminal investigation.