How to Make Rock Candy

Making rock candy - which is actually just sugar crystals on a string - can be a remarkably enjoyable and edible science project, as well as a tasty treat. Follow these simple steps to have a batch ready in no time.

Difficulty: Moderately Easy

Instructions

Things You'll Need:

• pencils
• 1 cup water
• 2 cups sugars
• paper and binder clips
• food coloring
• 1 quart jars or glass
• cotton strings
• ice cream sticks
• Food Coloring
• Ice Cream Sticks
• 1 Quart Jars Or Glass
• Pencils
• Paper And Binder Clips
• Pencils
• Cotton Strings
• Pencils
• 2 cups sugars
• 1 cup water

1. Sterilize the glass jar and paper clip by boiling both in water for a few minutes.

2. Tie a short piece of kitchen string to the middle of a pencil or Popsicle stick.

3. Attach the paper clip to the end of string. (The clip will weigh the string down - this is important later.)

4. Moisten string lightly and roll in sugar (this helps the crystals form on the string).

5. Place the pencil or stick over top of a jar. Make sure clip is in the bottom of jar and the string hangs straight down into jar.

6. Heat 1 cup water to boil.

7. Dissolve 2 cups sugar in boiling water.

8. Add a few drops food coloring if you like.

9. Pour sugar syrup into jar and leave for 2 to 3 days or until crystals form on the string.

Tips & Warnings

• Crystals should start to grow in 2 to 4 hours and continue to grow for a couple of days. For big crystals - fast - heat the sugar-water solution a second time and dissolve extra sugar in it.
• The sugar mixture is very hot and children will need adult supervision.

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[cloethecute]

on 8/23/2009 this tayst great.=)

[Imma1]

on 12/28/2008 Help!! My daughter and I have been trying to do this for three weeks and have yet to grow a single crystal. My daughter and her friend chose this as a science experiment for a science fair and the experiment is due next week! We have tried it at least 5 times.

Can anyone who has done it help me?
Ora

[kelseyc]

on 12/10/2008 yummmy! I loved these growing up. Thank you!

[lynnhsmomof2]

on 11/27/2008 Yummmmmm!!!! 5*

[Rockney]

on 11/24/2008 Great and fun recipe!