Endothermic Reaction - Cold Enough to Freeze Water
Ammonium thiocyanate is mixed with barium hydroxide. The mixture is stirred and the two solids react. A slush is formed because water is one of the products of the reaction. A drop of water is placed on a block of wood and the beaker is placed on the water drop. The reaction is endothermic, that is, it takes in heat. As a result, the bottom of the beaker becomes cold enough to freeze the water and stick to the wood.
The size of the movie file is 3.3 MB and its duration is 42 seconds. The name of the movie file is "ENDO1.MOV" and it is located in the folder "MOVIES/ENDO2".
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