Inquiry in Action

K-5 science lessons about science in everyday life

Free lesson plans aligned to NGSS, student activity sheets, and integrated animations help students understand science and chemistry in everyday life.


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

Second Grade 

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

Fifth Grade

Explore dissolving, density, chemical reactions, and the characteristics of solids, liquids, and gases.

Welcome to
Inquiry in Action!

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student working with model of cloud

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.


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

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