by msander | Sep 5, 2018 | Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Biology, Gr. 11-12 Chemistry
UV at ground level is non-ionizing but it damages DNA and causes photoaging – how? Also, it turns out glass doesn’t block all UV (specifically UVA passes through). This is something I learned filming with the UV camera inside. Special thanks to Dr. Hayley...
by msander | Aug 27, 2018 | Gr 9-10 Science, Gr. 11-12 Biology
Blood banks need a constant supply of donors to maintain their supply, but some enzymes that are already in our bodies might be able to help! Hosted by: Stefan Chin Blood Donation Resources: http://redcrossblood.org http://www.aabb.org/tm/donation/Pages…...
by msander | Aug 24, 2018 | Gr 9-10 Science, Gr. 11-12 Biology, Gr. 11-12 Chemistry
We asked two farmers on either side of the pesticide/herbicide debate — who happen to live in the same part of Saskatchewan — their thoughts on this issue. Here’s what they had to say. Source: 2 farmers weigh in on the pesticide vs. organic debate: Opinion | CBC...
by msander | Aug 16, 2018 | Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Biology, Gr. 11-12 Chemistry
Thousands of animal species use toxic chemicals to defend themselves from predators. Snakes have blood clotting compounds in their fangs, the bombardier beetle has corrosive liquid in its abdomen and jellyfish have venomous, harpoon-like structures in their tentacles....
by msander | Jul 23, 2018 | Gr. 11-12 Biology
The first ever vaccine was created when Edward Jenner, an English physician and scientist, successfully injected small amounts of a cowpox virus into a young boy to protect him from the related (and deadly) smallpox virus. But how does this seemingly counterintuitive...
by msander | Jul 11, 2018 | Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Biology, Gr. 11-12 Chemistry
Antarctica is a vast and dynamic place, but radar technologies — from World War II-era film to state-of-the-art miniaturized sensors — are enabling scientists to observe and understand changes beneath the continent’s ice in unprecedented detail. Join...
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