by msander | Apr 19, 2017 | Gr 9-10 Science, Gr. 11-12 Chemistry, Gr. 11-12 Physics
Students use electrical devices every day. An essential safety component of any electrical device is the fuse. Demonstrate what it means to “blow a fuse” and show why fuses are important safeguards against electrical fires. Courtesy of Flinn Scientific Canada. How...
by msander | Apr 19, 2017 | Gr. 11-12 Chemistry, Gr. 11-12 Physics
An atom is mostly empty space, but empty space is mostly not empty. The reason it looks empty is because electrons and photons don’t interact with the stuff that is there, quark and gluon field fluctuations. It actually takes energy to clear out space and make a...
by msander | Apr 19, 2017 | Gr 9-10 Science, Gr. 11-12 Chemistry
Since ancient Greek times, philosophers and scientists have tried to figure out what an atom looks like. For a couple thousand years, humans could only speculate on the structure and other properties of the smallest unit of matter. It wasn’t until the 1980s that...
by msander | Apr 16, 2017 | Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry
Most people don’t need matches, safety glasses and hydrogen gas to crack open an egg. But then again, Steve always finds the most unusual method to do the simplest things. Don’t try this at home. About Steve Spangler Science… Steve Spangler is a...
by msander | Apr 13, 2017 | Gr 9-10 Science, Gr. 11-12 Chemistry, Gr. 11-12 Physics
Mr. Key outlines how we use numbers in science, with specific regards to precision and significance. Please note that all questions, comments and critiques are welcome. However, because the primary purpose of these videos is educational for students/educators, the...
by msander | Apr 9, 2017 | Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Biology, Gr. 11-12 Chemistry
Pasta noodles contain only three ingredients: eggs, water and flour. But how can you achieve a tasty result every time? Cooking pasta chemically changes how the proteins and starches interact, making the noodles sticky and springy. Therefore, what you do — or don’t do...
Recent Comments