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Demonstration bells are perfect for many topics in physical science. Use it to test simple electric circuits, to teach about electromagnetism, or to show students how the components of a bell work together. Operates on a 6-volt battery.

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This large demonstration bell is perfect for many topics in physical science. Use it to test simple electric circuits, to teach about electromagnetism, or to show students how the components of a bell work together. Place the bell inside a large bell jar and evacuate it-students will see the bell moving, but no sound will be heard! Banana plug jacks make for easy connections. Operates on a 6-volt battery. Bell assembly is 18 x 9 x 4.5 cm and includes a 9 x 9 x 2.5 cm polished wood base.