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In this classic activity, learners investigate natural selection by becoming birds foraging for food on an island.

Many people get water from a source deep underground, called groundwater.

In this activity, learners explore sensors and focus specifically on how to measure humidity using a sensor.

In this activity, learners explore how engineers design devices that can detect the presence of pollutants in the air.

In this activity, learners conduct an experiment to investigate the effect of elevated levels on CO2 on plant growth.