by cbrookallred | Jun 22, 2015 | Gr. 11-12 Chemistry
By Leonard Bega and Keith Gale Curriculum Connection: SCH3U This lab determines the percentage by volume of oxygen in the air. We do this by allowing the oxygen in the air to rust iron contained in an iron wool. This causes the volume of the air to decrease as oxygen...
by cbrookallred | Jun 15, 2015 | Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry
>>> Written by Steve Spangler. Use a magnet to prove that there really is iron in your breakfast cereal. The next time you’re eating a big bowl of breakfast cereal, take a closer look at the ingredients. You’ll find that your cereal contains more...
by msander | Jun 8, 2015 | Gr 9-10 Science, Gr. 11-12 Biology, Gr. 11-12 Chemistry, Gr. 11-12 Physics, Safety
The Dow Chemical Company provides an excellent comprehensive series of lab safety modules outlined in the screenshot above. A significant portion of the content covers safety concerns in post secondary institutions, However, this resource still provides plenty of...
by cbrookallred | Jun 8, 2015 | Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry
Most of us want to do the right thing when it comes to the environment. But things aren’t as simple as opting for the paper bag, says sustainability strategist Leyla Acaroglu. A bold call for us to let go of tightly-held green myths and think bigger in order to create...
by cbrookallred | Jun 1, 2015 | Gr 9-10 Science, Gr. 11-12 Chemistry
Overview A room-temperature white solid in a bag is exposed to water. Upon mixing, the material in the bag becomes cold to the touch. The reaction occurring in the bag is absorbing heat from the environment, causing the area around the reaction to become cold....
by msander | May 21, 2015 | Gr. 11-12 Chemistry
Chemicals are in everything we see, and the reactions between them can look like anything from rust on a spoon to an explosion on your stovetop. But why do these reactions happen in the first place? Kareem Jarrah answers this question by examining the two underlying...
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