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

Wood is considered a mineral.

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Module of the day

The Nature of Scientific Knowledge

This module explores the nature of scientific knowledge by asking what science is. It emphasizes the importance of a scientific way…

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Term of the day


[noun] Magnitude; a measure of height from the highest to lowest point on a vertical axis; a measure of the size of…

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