• A student squeezes a drop of water out of a dropper. Illustrated water molecules are shown to compose the drop through a zoom-in efect

    Teach Science by Doing Science

    Investigate the world of atoms and molecules through hands-on inquiry-based activities and molecular model animations.

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  • The logo of AACT, the American Association of Chemistry Teachers

    Apply for a Content Writing Team

    AACT is looking for middle school physical science teachers to create lesson plans. Selected participants will receive $1,000. Apply by May 24.

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  • A teacher in front of a board

    New Standards Alignment

    Take a look at our new NGSS and CCELA Standards alignment.

  • Two students mix vinegar and baking soda in a graduated cylinder

    Se habla Español

    View selected lessons from MSC translated into Spanish.

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Download All Lessons

You can download all of the lessons from Middle School Chemistry for free.

Seriously.