by STAO ADMIN | Nov 12, 2019
This demo shows how flakes of iron can be extracted from iron-fortified cereals with the use of a strong magnet. The demo shows a physical separation process and provides students with a good example of how one component (the iron) can be separated from a heterogenous...
by STAO ADMIN | Nov 12, 2019
This demonstration reviews the concept of density. It examines why certain objects float or sink in water and highlights some interesting information about cola versus diet cola soft drinks.
by STAO ADMIN | Nov 12, 2019
In this demonstration, a peeled potato is cut into the form of a candle and an almond slice is used as the candle’s “wick.” The teacher lights the almond slice on fire and it burns. The students see the object, and make observations about it. Then the teacher blows...
by STAO ADMIN | Nov 12, 2019
Although all students know that it is essential to wear safety goggles during many science investigations, it can be helpful to provide a powerful demonstration showing why this is so important. This quick and easy demonstration can illustrate the necessity of...
by STAO ADMIN | Nov 12, 2019
This demonstration emphasizes how we can make predictions based on patterns. A jigsaw puzzle is used as an analogy for the periodic table. Just as Mendeleev left gaps in his original periodic table, gaps are left in this jigsaw puzzle and just as he hypothesized the...
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