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This energy transformation is sure to capture your students' attention!
Hold the glass vessel in your hand, and your body heat causes the liquid inside to appear to boil and shoot into the top bulb. Challenge your students to explain the rapid change. Assorted colors and styles. Hand Boiler is 7 inches tall.
Products being sold are not toys. They are for Educational / Laboratory use only. They are not for use by children 12 and under.