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Geology Science Fair Project

Rocks and Minerals: Candy Geology

Rocks and Minerals: Candy Geology | Science Fair Projects | STEM Projects
Join in learning the difference between a rock or a mineral with candy! Bite or cut each candy to observe its inside and classify it as a rock or a mineral.


The hypothesis is that some candies have characteristics of a mineral, while others have characteristics of a rock.

Method & Materials

You will observe the physical properties of candy, bite or cut it to observe its inside, and then classify it as a rock or a mineral. Minerals are things found in nature with a definite chemical composition and repeating arrangement of atoms. Rocks are made of a combination of one or more minerals that we find in nature.
You will need a plate to lay out the candies and assorted candies of two types: Group A Candy - Hershey Kisses, Gummy Bears, Chocolate Chips, Jelly Beans, Group B Candy - Snickers, Butterfinger, M&Ms, Reese's Cup.


This experiment uses candy to show the characteristics of rocks and minerals. Group A candies represent minerals and Group B candies represent rocks.

Why do this project?

This science project is unique because it uses candy to introduce the difference between rocks and minerals.

Also Consider

Experiment variations to consider are: using different types of candy or adding a microscope to observe the candy's physical properties in more detail.

Full project details

You can find additional information and details for this science fair project here. Have fun exploring!

Related video

Hey there! Here are some awesome videos about this science project that we think you'll really like. They're not only super fun, but they'll also help you learn more about the science behind the project. So sit back, relax, and get ready to have some fun!!
Learn about all the differences between minerals, rocks, crystals and gems from the American Museum of Natural History!
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