Today's Mission - Grow your own crystals!

How to crystals grow Crystals that we can see are actually formed at the molecular level. Their atoms line up in a pattern giving them the crystal shapes we recognize. Crystallization is the process in which atoms or molecules come together to form a solid in a specific pattern. We will do this by making a crystal solution and letting it cool over several days.

Materials needed: 1 cup or jar (ideally clear) Pencil or stick Thread (5-6") Crystal material (Epson Salt, Alum, Sugar or Borax) Food coloring *optional

Skills to practice: Measuring Observation Laboratory Skills

Modifications: Form a pipe cleaner into different shapes to make crystal ornaments. Make multiple types of crystals at the same time using different solutions. Then compare crystals.

INSTRUCTIONS

Step 1- Pour distilled water into a saucepan or microwave it so that it is warm. Stir in your crystal salt. Use a 1:1 ratio for salt/water. Step 2- Add a drop or two of food coloring (optional). Don't add too much color or it will effect the solution. Then set it in a safe place where it won't bumped or jostled.

Step 3- Tie one end of a thread around the middle of the pencil. Drop the line into the solution and rest the pencil on the opening of the jar/cup. Make sure the thread is just brushing the bottom. Step 4- Crystallization will happen over 1 - 3 days as the solution cools and condenses. Crystals will form to the solid thread. Don't pick up the jar or it'll damage the crystal growth. The crystal solution must stay absolutely still.

For bigger crystals you can pluck a single crystal out of the formation you just grew. Repeat the process above, but instead TIE YOUR CRYSTAL "BUD" to the thread when you drop it into the solution. This will continue the growth pattern started by the original crystal and make your bud grow!

Calling all Jr. Mad Scientists! Show us what you've learned by sharing your project with us. Email a photo (with caption) or video (30 seconds or less) to info@madsciencenorthboston.com with the subject JR MAD SCIENTIST . You could be selected as our daily Mad Scientist and featured on our social media feed.

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