Create a safe lightning storm in your classroom with a plasma globe.
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Shocking! Create a safe lightning storm in the comfort of your classroom. The electrically charged base creates colorful arcs across the gas inside the globe. Watch as the electric arcs migrate toward a hand placed on the globe. Use it to teach about positive and negative charges, grounded objects and lightning production. Students and teachers alike are always mesmerized by this device. Globe diameter is 4". Includes a power adapter.