by STAO ADMIN | Nov 13, 2019
This demonstration allows students to experimentally determine the speed of light by heating a piece of chocolate in a microwave oven. This demonstration is best used as an enrichment activity as the concepts involved go beyond the curriculum expectations. Still, the...
by STAO ADMIN | Nov 12, 2019
This demonstration is an entertaining way to introduce simple chemical reactions and the types of evidence that indicate the occurrence of chemical change, including the production of a gas. A link can be provided to the gas tests conducted in Grade 9 to help focus...
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...
by STAO ADMIN | Nov 12, 2019
In this demonstration, a chemical reaction is used to make a hidden message visible. The demonstration illustrates an entertaining application of chemical reactions in toys and everyday objects. It is also an interesting way to start the discussion of acids and bases,...
by STAO ADMIN | Nov 12, 2019
In this demo, a polyethylene strip is charged by rubbing with wool. The charged strip is then used to make paper circles stand on their edges inside a Petri dish. This demo introduces students to the charging of materials by induction as opposed to charging by...
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