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

Charles Darwin I

The experiences and observations of Charles Darwin significantly contributed to his theory of evolution through natural selection. This module explores those…

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Term of the day

Ferrel, William

[person] (1817-1891) American schoolteacher and meteorologist. Ferrel is best known for his contributions to describing and explaining circulation in what is now…

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