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Science Experiment for Kids to Watch

Ingredients

  • Medium size lump of coal
  • 1 Tbsp. salt
  • 2 Tbsp. water
  • 2 Tbsp. laundry bluing
  • Mercurochrome
  • Food coloring (opt.)

Directions

Place a lump of coal in bowl and sprinkle 1 Tbsp. salt over the coal. Carefully pour 2 Tbsp. water over salt. In the same manner, pour 2 Tbsp. of laundry bluing. Then add 2 or 3 drops of mercurochrome. Repeat with food coloring. After several days, you should have a colorful mosslike growth. If not, add a few more drops of water. This is something small children really enjoy!

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By Robin from Washington, IA

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October 27, 20050 found this helpful

these were called depression roses, back in the old days, you can use a regular rock too instead of coal but it doesn't look nearly as good

 
By (Guest Post)
October 27, 20050 found this helpful

What is mercurochrome and where can I get it?

 

Diamond Feedback Medal for All Time! 1,023 Feedbacks
October 28, 20050 found this helpful

Ask the pharmacist or chemist. It is an antiseptic.
Susan from ThriftyFun

 
By guest (Guest Post)
March 2, 20060 found this helpful

Is that coal from the BBQ? and do you know where to get bluing? Thanks for any feed back.

 
March 3, 20060 found this helpful

The bluing is usually found in older style dime stores or pharmacies. I also found it in WalMart.

 

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