by msander | Mar 6, 2017 | Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Biology, Gr. 11-12 Chemistry, Gr. 11-12 Physics
A frog’s tongue can get prey into its mouth in less time than it takes for you to blink – just seven hundredths of a second. The bug is whipped through the air with a peak acceleration of around 12Gs, way more than astronauts experience when launched into space,...
by cbrookallred | Mar 2, 2017 | Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science
By most standards, Earth has seven continents – Africa, Antarctica, Asia, Australia/Oceania, Europe, North America, and South America. A group of geologists believes we should recognize an eighth. Earth’s “hidden” continent, they say, is a mostly submerged land mass...
by msander | Mar 2, 2017 | Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Biology, Gr. 11-12 Physics
Bat-bot could one day aid in search and rescue operations. Learn more: http://scim.ag/2jVvS7V Read the research (free):...
by msander | Feb 23, 2017 | Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Biology
For most of human history, we had a lot of bad ideas about how we were getting sick: angry gods, misaligned planets, stinky fumes. We also had plenty of bad ideas about how to prevent it, like bloodletting, large holes in the head and drinking arsenic. Things started...
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 13, 2017 | Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Biology, Gr. 11-12 Chemistry
It’s peak cold and flu season, and mucus is making many of our lives miserable. But despite being a little icky, phlegm gets a bad rap. This germ-fighting goo contains cells and chemical compounds that help us power through a cold. You can also think of mucus as a...
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