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This activity explores the basic workings of a siphon, which is the core technology that makes toilets work.

This activity investigates how bark beetles can threaten forests by having learners estimate the number of infected trees from a photo.

In this activity, learners work in teams to simulate the process used by Global Positioning Systems (GPS) to determine the location of a fallen meteorite in Antarctica.

In this experiment, learners examine the way oil affects bird feathers and test different cleanup methods to find out which works best.