by msander | Jun 28, 2019 | Gr 4-6 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry
You probably know that voltaic batteries come in all kinds of shapes and sizes, from tiny button batteries to car batteries to huge industrial heavy-weights. They turn chemical energy into the electrical energy that people use to power clocks, toys, cell phones,...
by msander | Feb 18, 2019 | Gr 4-6 Science & Tech, Gr 9-10 Science, Gr. 11-12 Physics
Introduction Measuring tiny volumes with precision and accuracy requires a micropipet. In the biology lab, micropipets are used for preparing and loading DNA samples, microscale experiments and the preparation of many types of samples. These applications rely on good...
by msander | Jan 6, 2019 | Gr 4-6 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry, Gr. 11-12 Physics
When charge moves, we call it electric current, but the word current is usually reserved for things like water flows. Does electric current really work like that? Electrons are quantum particles, so we have to be careful....
by msander | Oct 19, 2018 | Gr 9-10 Science, Gr. 11-12 Physics
What’s Going On? When a magnet is moved by a coil of wires, you can induce an electric current. This is the principle behind how most of the electricity is produced in the world; it’s just a question of where you get the energy to move the magnets. Every time a magnet...
by msander | Sep 4, 2018 | Gr 9-10 Science
This is the third part of a series of blogs written to suggest teaching methodology for the topic “Electricity”. Brief descriptions of Parts One and Two have been included below. Part One: Models: In the picture below, soup cans are used to represent students....
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