by msander | Dec 12, 2019 | Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science
Marshmallows are a delicious, fluffy staple of summer, campouts, and barbecues. Did you know that there isn’t really much to them? It’s true. The best way to see what really comprises a marshmallow is to put it to the Marshmallow Masher pressure test....
by msander | Nov 19, 2019 | Gr 7-8 Science & Tech, Gr 9-10 Science
Density differences cause objects to “float” in liquids that are already stacked on top of each other. With this science-magic trick, you’ll put a new spin on our famous Density Column demonstration. First, you’ll discover how to stack nine layers of liquids on top of...
by msander | Nov 1, 2019 | Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry
We hear bubbling potions which can only mean one thing… our science guy Steve Spangler is in the 9NEWS kitchen. It’s estimated that over 175 million Americans will participate in Halloween activities this year spending over $9 billion on all that fun. Every year our...
by msander | Mar 19, 2019 | Gr 9-10 Science, Gr. 11-12 Chemistry, Safety
This recent article from the Journal of Chemical Education is an excellent overview of accidents that have happened involving flammable liquids. The authors report 164 children and educators have been injured over a 20 year period. The article also provides useful...
by msander | Feb 8, 2018 | Gr 9-10 Science, Gr. 11-12 Chemistry, Safety
While serious accidents causing catastrophic injury in high school science activities are rare, when they occur their human toll can be devastating. This post examines one potentially dangerous demo, its hazards and suggestions for safer alternatives. The Rainbow...
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