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Lesson Plans for Teachers

Free STEM related activities for K-12 Educators

Below you will find activities and free lesson plans that support classroom learning.

Name Grade Subject Description

Chromatography Flowers 
(.PDF, 669 KB)

K-5 Chromatography flowers In this activity, students will make observations while conducting chromatography using simple household items. This activity can be adapted to become an experiment where students control for different variables or to become an art project in which students can create colorful chromatography flowers.
Salt Crystal Snowflake 
(.PDF, 388 KB)
K-12 Salt crystal snowflakes In this activity, students will create a paper snowflake that glimmers with salt crystals. The activity could be used as a discussion starter for lessons about solutions, crystallization, evaporation, or saturation.
Fizzy Melting Snowman 
(.PDF, 199 KB)
K-12 Fizzy melting snowman Build an indoor snowman and see how it can still “melt” with the help of chemical reactions rather than a temperature increase. The activity could be used as a discussion starter for lesson on acids, bases, chemical reactions, acid/base reactions, and decomposition reactions.
Marshmallow Igloo 
(.PDF, 678 KB)
K-12 Marshmallow igloo Students will create an igloo made from just marshmallows and toothpicks. This engineering activity could be use for problem solving, special reasoning, or geometric concepts.

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Looking for more lesson plans?

The Oak Ridge Institute for Science and Education (ORISE) provides dozens of free lesson plans to help your students embrace STEM education. Here you will find activities and free STEM lesson plans that support classroom learning in grades Pre-K through high school.

View lesson plans at ORISE

Young female students participate in a STEM camp

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