Toxicology Primer – Safety Note by Flinn Scientific Canada

Every chemical in the academic laboratory can be toxic under some set of exposure conditions. However, the reverse is also true—every chemical has some set of exposure conditions in which it is not toxic. This fundamental toxicology principle is usually summarized in the saying “the dose makes the poison,” which dates back to the medieval physician and scientist Paracelsus born in 1493. Continue reading

Bilingual Ontario Multimedia Curriculum Resources for Science & Technology Teachers

Teachers, Our Incredible World (www.incredibleworld.ca)  offers multimedia curriculum resources for the Science & Technology strand suitable for grades 4 to 11. All video series, lesson plans, games, newsletters/factsheets, career profiles, and other resources are designed with teachers, for teachers. They cover topics such as: habitats, ecosystems, biodiversity, species-at-risk, invasive species, and other related life sciences subjects. All videos can be viewed on the site.

Filmed in Ontario, each video series features 2 young people -Incredible World Investigators on assignment to interview scientists and discover firsthand why some species are at risk and what is being done about it. From tracking wolves in the boreal forest in the dead of winter, to converting a suburban lawn into a shared habitat for a multitude of species, including bats, the young investigators have fun, while taking their assignments seriously.

Each series is accompanied by lessons that tie the video story-line to the Ontario’s Science and Technology curriculum. The lessons provide a stimulating mix of science-based class discussions and activities and allow educators to integrate group work, skills-building exercises, research, experiments, art, graphing, data recording, critical thinking, and debating into their classrooms. They culminate with students creating a variety of assessment products including informational posters, graphic organizers, and project assessment reports.

Click here to download the complete information package about this amazing resource.  

 

 

What is dust made of? – TED Ed by Michael Marder

Less than a tenth the size of an ant, a dust mite’s whole world is contained in the dusty film under a bed or in a forgotten corner. This realm is right under our noses, but from our perspective, the tiny specks of brilliant color blend together into a nondescript grey. What are these colorful microscopic particles? Michael Marder explores the science of dust. Continue reading

Strawberry DNA – Food Science | Science Experiments | Steve Spangler Science

In this lab, you extract and isolate DNA from strawberries using simple, household ingredients.

You’ve probably learned or heard about DNA, but have you ever seen it? With the Strawberry DNA experiment, you’ll extract, isolate, and observe the DNA of a strawberry in a matter of minutes. It sounds impossible, but thanks to special characteristics of strawberries, it’s actually very possible… and simple. You don’t have to be a geneticist and you don’t need an electron microscope. It’s easy, fun, and all you need are some household materials.

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Why Do We Itch?

It’s one of the most annoying sensations our bodies can feel, but does anything feel better than when you scratch an itch? Ok, maybe *some* things. But itching and scratching are up there. How does this weird sensation work? And what is itching for? Continue reading