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In this chemistry challenge, learners identify which plants have the enzyme "catalase" that breaks hydrogen peroxide into water and oxygen.

Learners smell balloons filled with different scents to guess what's inside. From this, they infer the presence and motion of scented molecules.

DNA is the thread of life. Encoded in its genetic sequence is the information that makes each of us unique.

In this experiment, learners will conduct chemical and physical tests to identify mystery substances.

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