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

Earth's magnetic field is constant.

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Module of the day

Ruth Benerito

Wrinkle-resistant cotton is one of the most significant developments of the 20th century. In the midst of an economic and social…

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Term of the day


[noun] A social philosophy that advocates for the control of heritable characteristics in humans through various forms of intervention including selective breeding,…

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