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Rocks and Minerals: Test Rock Magnetism and Acid Reactivity

Three different labs to investigate rocks and minerals. In the first, kids will compare various rocks in terms of their grain sizes. In the second lab, kids will test rocks for magnetic properties, and lastly they’ll see how chalk (a rock) reacts to acid by fizzing. Each of these activities model procedures that geologists do.


What's Included:

✅ Task Card instructions
✅ Student Sheets for capturing observations
✅ Answer Keys to Student Sheets
✅ Teacher Notes with prep, set up, and explanations.


This Resource Is Great For:

❑ Whole class activity
❑ Group work
❑ Science Center, Science Stations


Questions Answered:

☀ How can you determine which rocks are magnetic?
☀ What rock(s) react to acid by fizzing?
☀ How do different rocks appear under magnfication?


Topics & Concepts Addressed:

✦ When studying rocks you can compare their grain sizes.
✦ A few rocks are magnetic
✦ Limestone and chalk react to acid by fizzing.


Materials Needed

suggested rock and mineral samples: granite (fine and coarse-grained), basalt, soapstone, mudstone, siltstone, gabbro, breccia, conglomerate, schist, gneiss, obsidian, halite, quartz, amethyst


Preparation Needed

collect materials, order rock samples

Rocks and Minerals: Test Rock Magnetism and Acid Reactivity


    Answer Keys and Teacher Notes address most questions and issues that might arise in this study—you shouldn’t have to do any outside research unless you want to.

    Connect with me: If you have questions or problems, please let me know and I’ll get back to you as soon as I can.


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