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The Reappearing Pumpkin—Chemical Demonstration Kit

By: The Flinn Staff

Item #: AP6384

Price: $23.85

Perform some of your Halloween magic with the Reappearing Pumpkin Chemical Demonstration Kit. A slight variation of the classic “Blue Bottle Experiment” allows a pumpkin face to disappear and then reappear over and over again.

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This item can only be shipped to schools, museums and science centers

Product Details

Perform some of your Halloween magic with this fun demonstration. A slight variation of the classic “Blue Bottle Experiment” allows a pumpkin face to disappear and then reappear over and over again. Shake the flask and the pumpkin face disappears as the dark blue color masks the appearance of the pumpkin face. Undisturbed, the pumpkin magically reappears again!

Concepts: Oxidation–reduction.
Time Required: 10–15 minutes
Chemicals Provided: Sodium hydroxide, glucose, yellow food coloring, and methylene blue.