A learning space for science educators and students

Free Award-winning Content
Free Award-winning Content

We create and provide high-quality, accessible, educational content in the science, technology, engineering and mathematics (STEM) disciplines at the introductory undergraduate level.

About us
Next Generation Science Standards
We support NGSS

Our exclusive content integrates science and engineering practices with disciplinary core ideas and cross-cutting concepts in alignment with the Next Generation Science Standards.

About NGSS

Quick Quiz

The amplitude of a wave is a measure of its

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Module of the day

Future of Human Evolution

Some noted modern scientists have declared that human evolution is over. With advances in medicine and public health, natural selection is…

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Term of the day

buoyant force

[noun] The upward pressure exerted on an object by a fluid in which the object rests.

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