National Park Service: Junior Ranger Online - Backyard Geology

It’s time to channel your inner rock star!

Devils Tower is made up of a very unique type of rock called phonolite porphyry (PHONE-o-lite por-FY-ree). This type of igneous rock formed when magma (molten rock) cooled very slowly underground. Explore the rocks around your home as a junior geologist, or scientist who studies the earth!

Find a rock and observe it (study it carefully). Use the Field Notes below to guide your observations and record your notes in a journal or sheet of paper. You can print the Field Notes sheet to use.

Put your rock on display for a day and share what you’ve learned with your family! When you’re done, remember to put the rock back where you found it. Junior Rangers practice Leave No Trace ethics by not taking anything from its home in nature.

Science Topics
K-6, Middle School
Kindergarten, 1st Grade, 2nd Grade, 3rd Grade, 4th Grade, 5th Grade, 6th Grade, 7th Grade, 8th Grade

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