Functional artificial blood could solve a lot of problems, so why hasn’t it been created yet?
Hosted by: Hank Green
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Categories: Gr 9-10 Science, Gr. 11-12 Chemistry
Introduction In this demo, the teacher creates a beautiful rainbow of colours in a demonstration tube using universal indicator and a dilute acid and base. Discussion Universal indicator can be used... read more
Categories: Gr 9-10 Science, Gr. 11-12 Chemistry
https://youtu.be/a3z8WBN_ey4 Mr. Key compares covalent and ionic bonds in order to explain why particles of salt are referred to as formula units and not molecules. read more
Categories: 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... read more
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