by STAO ADMIN | Nov 13, 2019
Teachers are required to have fire safety training and permission of the employer before going forward with this demonstration. The purpose of this demonstration is to illustrate an example of an exothermic reaction while looking at chemical properties of an alcohol....
by STAO ADMIN | Nov 13, 2019
There are many different kinds of polymers, both natural and synthetic. Polymers are widely used and have many practical applications based on their properties. They are often strong and chemically stable. Examples of natural polymers include proteins, starch,...
by STAO ADMIN | Nov 13, 2019
This activity illustrates the effect of intermolecular forces on surface tension of a liquid. Students attempt to place drops of various types of liquids on the face of a penny (or any available coin). The substances with stronger intermolecular forces have greater...
by STAO ADMIN | Nov 13, 2019
Heat transfers in physical and chemical reactions have many practical applications. Exothermic reactions release heat to the surroundings, resulting in an increase in surrounding temperature. Endothermic reactions require heat from the surroundings, resulting in a...
by STAO ADMIN | Nov 12, 2019
This activity can be an engaging way for students to visualize how ionic compounds are formed and where their formulas come from. Although it will take time to create the decks of cards the first time around, they can be reused year after year. This game can be used...
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