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General Chemistry Science Fair Project

Geode Rock Borax Crystal

Geode Rock Borax Crystal | Science Fair Projects | STEM Projects
Have you ever wanted to create your very own geode rock crystal? With just a few simple ingredients found at home, you can! In this experiment, you'll learn how to make Borax crystals that are perfect for decorating or just for fun!


The hypothesis is that when Borax is dissolved in hot water and cooled, crystals will form.

Method & Materials

To make a rock crystal formation, bend a pipe cleaner into an oval shape, dissolve Borax in hot water, and pour the solution into a bowl or container. Add food coloring if you want colored crystals. Tie a string to a pencil and balance it on top of the bowl, then suspend the pipe cleaner in the solution. Wait 12-24 hours and observe as crystals grow on the pipe cleaner.
You will need Borax, warm water, string, pencil, pipe cleaners, food dye, a large bowl, scissors, a cooking pot, and a tablespoon.


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Full project details

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Related videos

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!!
Create a large geode crystal using borax, food coloring, and a pipe cleaner!
Bring the winter wonderland indoors and make dazzling snowflake ornaments with just borax and pipe cleaners!
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