This is our second one pound gummy bear reacting with potassium chlorate. For this video we filled the gummy bear with more potassium chlorate resulting in a longer reaction.
Properties of Matter
Potassium chlorate is a chemical that reacts violently with sugar. In this video, we filled a one pound gummy bear with potassium chlorate and used a magnesium strip to provide heat to begin the reaction.
Volume is a measurement of the amount of space that an object or substance takes up. In this video, we see how volume of a liquid can be measured using a graduated cylinder. We also look at how the displacement of a solid object can be used to measure its volume.
Although they appear to be molded out of plastic, ping pong balls are actually made from nitrocellulose – cellulose from plant fiber that has been treated with nitric acid. While this nitrocellulose can be used to form a lightweight, high-bouncing ball; it is also highly flammable.
Butane is a flammable gas that is often used in lighters and for cooking. When soap bubbles are filled with butane, they create amazing flammable bubbles that can create an exciting combustion demonstration. Because the butane burns very quickly, it is even possible to hold a handful of burning bubbles. Remember that handling any burning materials, especially gasses, is dangerous; and that this demonstration should not be attempted at home!
Dry ice is the solid form of carbon dioxide. When dry ice is placed in a liquid, carbonic acid is formed as the dry ice sublimates into carbon dioxide gas. Using universal indicator, we are able to see evidence of the formation of carbonic acid through a color change, as an alkaline solution becomes acidic.
Magnesium is a flammable metal that burns at a very high temperature. When magnesium ribbon is burned between two large blocks of dry ice, it generates a brilliant white flame while releasing large amounts of carbon dioxide gas as it sublimates the dry ice.
Many people do not view iron as a flammable metal. If an iron rod is placed over a flame, it can be heated until it glows orange without actually burning. When finer iron, in forms such as iron powder or steel wool, comes in contact with a flame; however, it will quickly oxidize, appearing to burn as it is chemically changed into iron oxide.