On the bench · not built yet

Tug of War Arena

Add teams to a tug of war; balanced forces hold still, unbalanced ones win. Predict the pattern of motion.

Nearby on the shelf

Guide a steel ball through a maze using magnets you can't touch; static electricity levels with balloons.

Spin life cycle wheels for frogs, butterflies, beans and chickens; place each stage and compare the cycles.

Choose whether animals hunt alone or in groups; see survival rates change for wolves, fish schools and bee...