Diluting acids to prepare a solution of a required concentration requires skill, training and common sense.  This Flinn Scientific video offers good, practical advice on how to prepare dilute acid solutions.  A safer alternative to working with concentrated acids is to purchase  prepared dilute solutions. Always check the MSDS and your Board protocols before working with chemicals.
Categories: Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Physics
https://www.youtube.com/watch?v=nynfeE4TFtE Globe and Mail Science reporter Ivan Semeniuk describes Canada's contribution to the construction of a new, state of the art telescope in Hawaii that is... read more
Categories: Gr 9-10 Science, Gr. 11-12 Chemistry
https://youtu.be/fPnwBITSmgU The elements had been listed and carefully arranged before Dmitri Mendeleev. They had even been organized by similar properties before. So why is Mendeelev's... read more
Categories: Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry
[embed]https://www.youtube.com/watch?v=b3_Abb2Vqnc&feature=youtu.be[/embed] This video provides excellent graphics and analogies to describe the volume and distribution of water on... read more
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