Growing crystals is a great way to start a unit on Rocks and Minerals. Trying different substances, like copper sulfate, Epsom salts, and salt, you'll see widely different shapes. You can use the crystals you grow as a reference throughout your entire study.

 

Use this to learn and reinforce answers to questions such as: 

❑ What crystal shapes do various minerals grow? 

❑ Do all minerals grow the same shapes? 

❑ Can a single mineral grow different shapes? 

 

Concepts Addressed

♦  Minerals are inorganic solids

♦  Minerals are crystalline

♦  Minerals are naturally occurring

♦  Minerals can form from dissolved substances

 

Standards Addressed

NGSS MS-ESS2-1

TEKS 6.6C

 

Materials Needed: Magnifying lens, tray, craft sticks, small cups, plastic plates, two or more of the following salts: alum powder, kosher salt, sugar, copper sulfate, borax, epsom salts

 

Teaching Time   About 30-40 min, plus two or more days for crystals to grow. 

 

Student Sheets   Scaffolded writing prompts & lab reporting 

 

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.

Growing Crystals from Common Salts: Compare their Geometry to Minerals

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    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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