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Challenge your students´ observation and reasoning skills with this simple demonstration!
Watch as four solutions which appear to be one color under visible light "change" color when exposed to ultraviolet light.
Light Energy and Chemical Energy Demonstration
Magically turn water to grape juice to lemonade to 7-Up® to milk to finally—after consuming all that, you’ll surely need— Pepto-Bismol®!
Bubbles and heat, foam and steam, “Old Foamey” has it all! Mix hydrogen peroxide with dishwashing liquid, add sodium iodide catalyst, then stand back and marvel as the decomposition reaction erupts in a cascade of steaming foam.
A bottle of liquid club soda is removed from an ice bath and opened. Moments later the club soda freezes inside the bottle.
Three colorless solutions are mixed to produce a yellow solution that suddenly turns blue, then fades to colorless and turns yellow again. The color of the solution will continue to oscillate between yellow and blue for 10–15 minutes.
Create a floating tin sponge that rises to the surface upon reaction of an acidic tin(II) chloride solution with zinc. Two distinct single replacement reactions are clearly visible in this demonstration of the activity series of metals and the reactivity of metals with hydrochloric acid.
Seven colored solutions of different densities are prepared, and then carefully added to a graduated cylinder to demonstrate layering. A vertical rainbow of colors is produced! A spectacular demonstration on density.