Tag: density

Classroom Ideas, Current Event Connection, Main

Super Wood Is Stronger Than Steel

SCIENCE Densifying lumber can increase its strength tenfold. (Popular Mechanics) Learn more about this eco-friendly renewable resource here. Teachers, scroll down for a quick list of key resources in our Teachers Toolkit. Discussion Ideas How have scientists created a “super wood” that is stronger and more durable than metal? Read through the great Popular Mechanics article for some help. densification. Researchers used an innovative two-step process … Continue reading Super Wood Is Stronger Than Steel

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Classroom Ideas, Current Event Connection, Main

When Humans Quit Hunting And Gathering, Their Bones Got Wimpy

SCIENCE Compared with other primates and our early human ancestors, we modern humans have skeletons that are relatively lightweight—and scientists say that basically may be because we got lazy. (NPR) Watch our video on the Hadza, the last hunter-gatherer communities on Earth. Discussion Ideas The NPR article says that scientists were studying the bones of different primates, including humans. Besides humans, can you name some … Continue reading When Humans Quit Hunting And Gathering, Their Bones Got Wimpy

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