How do you measure the distance to something so incredibly far away light a star? As you’ll see in this video from Scientific American, the math involved is actually quite simple and relies on a property called parallax. Click here to have a look.
Never miss a resource
The Science Teachers Association of Ontario adds new resources, blog posts, videos and more on a regular basis.
Categories: Gr 9-10 Science, Gr. 11-12 Physics
https://youtu.be/rKlZ_ibIBgo he useful glare-blocking properties of polarized sunglasses are well-known to just about anyone who goes outside. What isn't so well-known is how they reduce glare in... read more
Categories: Gr 1-3 Science & Tech, Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science
https://youtu.be/Zm6X77ShHa8 Beavers have done more to shape North American landscapes than any animal beside humans. We don’t notice them much today because there aren’t many left, but before... read more
Categories: Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry, Gr. 11-12 Physics
The resonant frequencies of your vocal tract change when you breathe in a lungful of helium. Now, here's how and why helium affects your voice. Source: Why Does Helium Affect Your Voice? read more
Session expired
Please log in again. The login page will open in a new tab. After logging in you can close it and return to this page.