Two Canadian cities are doing an about face on their decision to remove flouride from drinking water after rates of tooth decay spiked, especially among children.
Source: Canadian cities rethink removal of fluoride from tap water | CBC News
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Categories: Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry
https://youtu.be/X9mNgvdsncE Climate change is happening we all need to get serious about limiting our carbon dioxide emissions! At the same time, scientists are looking for plan B because... read more
Categories: Gr 1-3 Science & Tech, Gr 4-6 Science & Tech, Gr 7-8 Science & Tech
Contributed by Les Asselstine. Our students can and should take responsibility for litter on the schoolyard and in the neighbourhood. Here are some possible activities. Regularly collect litter... read more
Categories: Gr 4-6 Science & Tech, Gr 9-10 Science, Gr. 11-12 Physics
Introduction Hans Christian Oersted (1777–1851), a Danish physicist, was performing an experiment in 1820 when he noticed that whenever an electric current from a battery was switched on or off, a... read more
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