by cbrookallred | May 3, 2017 | Gr 9-10 Science
When you gaze up in the night sky, some stars will be very bright while other stars are barely visible to the unaided eye. With the aid of binoculars, you may be able to observe different colours in the stars. The brightness and colour of a star depends on three...
by cbrookallred | Apr 23, 2017 | Gr 9-10 Science
This demonstration is a great way for students to model the stages of mitosis. Images of the different stages in textbooks are static snapshots and many students have difficulty grasping the idea that mitosis happens as part of a continuous cycle. What happens?...
by cbrookallred | Apr 19, 2017 | Gr. 11-12 Biology
In this demonstration, students will see a model showing that antibodies bind to antigens as an immune response to foreign invaders. The use of multiple colours shows that antibodies are specific to particular antigens, and suggests that a resilient immune...
by cbrookallred | Feb 23, 2017 | Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science
Predator–prey relationships are one of the most important biotic relationships in the sustainability of an ecosystem. Predators are the natural controls in an ecosystem, limiting the size of a prey population. Many studies have illustrated that the long-term...
by msander | Feb 6, 2017 | Gr 9-10 Science, Gr. 11-12 Chemistry, Safety
Borax Advisory Update Health Canada Health Canada issued an advisory this past summer, suggesting that exposure to boron substances be reduced as much as possible from all sources. They identified boron substances as a developmental and reproductive health risk. They...
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