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In this activity, learners create a "Jam Jar Jet" based on Francois Reynst's discovery of a pulsejet engine, which uses one opening for both air intake and exhaust.

This activity teaches combustion as the interaction of a fuel source and oxygen.

In this activity, learners construct a simple electrolysis device. With this device, learners can decompose water into its elemental components: hydrogen and oxygen gas.

In this activity, learners construct a small "air cannon," and use its airflow to put out a candle (lit with the help of an adult).