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

Scientists use enormous wind tunnels to test the design of planes, helicopters, even the Space Shuttle.

In this activity (on page 14 of PDF), learners use a pan full of flour and some rocks to create a moonscape.

In this activity, learners mimic remote sensing. Learners use a stick to measure the distance to a "planet surface" they cannot see, and create their own map of the landscape.

In this activity, groups of four learners must complete a set of four manual tasks. The restrictions are that they must complete the tasks in a limited time while wearing garden or rubber gloves.