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Inquiry in Action

Welcome to the new Inquiry in Action!

New features include:

  • Alignment to NGSS Standards
  • 5-E lesson plan format
  • Animations to explain science concepts to students

And it’s all still FREE!

K-5 science lessons about science and chemistry in everyday life

Activities and animations investigate clouds, rain, evaporation, snow, wind, and why coats keep us warm in cold weather.

Activities and animations investigate properties of materials, why certain properties work for particular uses, and how heating and cooling affect matter.

Activities and animations explore dissolving, density, chemical reactions, and the characteristics of solids, liquids, and gases.

About Inquiry in Action

Inquiry in Action is a FREE teacher resource of fully-developed lesson plans in physical science for grades K-5.

All Inquiry in Action Lessons:

  • Are aligned to the Next Generation Science Standards (NGSS) for “Weather and Climate” (Kindergarten) and for “Structure and Properties of Matter” (2nd and 5th).
  • Are based on phenomena students observe and explore through hands-on investigations.
  • Are presented in a 5-E format (Engage, Explore, Explain, Evaluate, and Extend) and include student activity sheets for 2nd and 5th grades.
  • Have been reviewed for safety with notes added where necessary.
  • Include embedded animations to help explain science concepts to students.

For questions, comments, or more information, please contact


Permission is granted in advance to photocopy lessons and activity sheets and to use animations and videos in the classroom, or for non-commercial teacher professional development workshops. No material from may be copied or incorporated into print or web-based media for commercial purposes without the written consent of the Education Division of the American Chemical Society (ACS) or other copyright holders as indicated.

Copyright 2020 American Chemical Society