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

Globally, precipitation far exceeds evaporation.

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Module of the day

The Case of the Ivory-billed Woodpecker

This reading guide provides access to a published, peer-reviewed scientific research article from the journal Science. Lists of questions and instructions…

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Term of the day


[adjective] A description of cells that are very sensitive to changes in voltage and the movement of ions.

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