by msander | May 11, 2017 | Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Biology
You could almost say they are drop-dead gorgeous: when certain female dragonflies are pursued by unwanted suitors, they deter them by crashing to the ground Source: Female dragonflies fake sudden death to avoid male advances | New Scientist
by msander | May 8, 2017 | Gr 1-3 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Biology
The size of a school bus but in many ways a mystery, whale sharks continue to fascinate. Join a team of international scientists at a renowned marine sanctuary in Cabo Pulmo, Mexico and discover how we’re trying to better understand these remarkable creatures....
by msander | Apr 30, 2017 | Gr. 11-12 Biology
What is the balance between heredity and environment in determining what an organism will look like? In this activity, students examine germinating tobacco seeds from parents heterozygous for albinism. Courtesy of Flinn Scientific Canada Albino tobacco seed activity...
by msander | Apr 26, 2017 | Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Biology
How do earthworms eat? If you’re enjoying some tasty food today that has at least one ingredient that was farmed somewhere, you probably owe a little thanks to earthworms. How is it that these detritivores – literally dirt eaters – turn what humans find inedible into...
by msander | Apr 26, 2017 | Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Biology
You might be susceptible to “tickle attacks,” but have you ever wondered why you can’t tickle yourself? SciShow is nominated for a Webby! Vote for us! https://vote.webbyawards.com/PublicVo… Hosted by: Michael Aranda ———- Support SciShow by...
by msander | Apr 23, 2017 | Gr 9-10 Science, Gr. 11-12 Biology
The sequence of DNA that we inherit from our parents encodes directions for making our cells and giving us specific traits. Identical twins have the same DNA sequence, so how can one twin end up with a genetic disorder while the other twin does not? Robin Ball...
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