The lessons are so well written and match many of the benchmark targets in our district and our national standards for math and science in Texas.

- Science Coordinator, Houston, TX

January 2026 Editor's Pick

Unraveling Rising Sea Levels: Exploring Density Through Mixtures and Solutions

Students explore density through hands-on experimentation and collaborative problem-solving. They design and test mixtures using everyday substances, aiming to create the densest solution. Students brainstorm, plan, create, and test their mixtures, recording observations ...

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Free K-12 standards-aligned STEM curriculum for educators everywhere.
Find more at TeachEngineering.org