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In this two-part activity, learners will extract their own DNA from their cheek cells and learn how DNA is analyzed and used to solve crimes.

Using electrolysis, learners produce hydrogen gas and oxygen gas from water molecules in a solution.

Learners observe working lava lamps to understand how they work (included in PDF link).

Learners place their hands on different metals and use an ammeter to monitor the flow of electricity from one metal to another.

In this activity, learners will design a way to identify a powder found at a crime scene by comparing it with known powders, with the goal of solving a crime.