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Glow in the Dark Jell-O!!!

This post may contain affiliate or advertiser links. Read my full disclosure policy .

Normally on Thursdays we post about a craft or a field trip.  This week though, we’re posting a special detailed post about a lesson in our unit.  This lesson does make a great family activity, so we encourage you to try it with all your kiddos! 

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For this activity you will need:

  • 2 8 serving boxes of Jell-O, any flavor
  • 1 cup of Tonic Water
  • 1 1/2 cups of Water
  • Cookie Cutters in Halloween Shapes
  • A Black Light Bulb

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To make the Jell-O

  • Bring the Tonic Water and the water to a boil
  • Stir in the Jell-O mix and allow it to completely dissolve
  • Pour into a 9×13 cake pan and put refrigerate for 3 1/2 hours

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  • Once you remove from the refrigerator soak the bottom of the cake pan in warm water to loosen the Jell-O
  • Turn the Jell-O out onto a cookie sheet
  • Use cookie cutters to cut out Jell-O shapes

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Once you’ve cut out the shapes, put them on a white plate, if you have one, and turn off all of the lights but the black light.  Step back and look at the show! 

Some Tips:

  • We used red Jell-O but I wouldn’t recommend it.  It came out very dark.  If I did it again I would use blue or orange. 
  • Black Light bulbs can be found at any store
  • Tonic Water is made by Canada Dry and is in the drink aisle at your grocery.  Do not use Diet Tonic Water, like we did.  It dulls the glow. 
  • Spray your cake pan with cooking spray before putting the Jell-O in to chill
  • Halloween cookie cutters can be bought individually for around a $1.  I found ours at Kroger in the seasonal aisle. 
  • Tonic water is carbonated, and if shaken, it will explode when opening…not that it happened to me or anything :) 

Have fun!

Amber1

Questions?  Post questions or comments on our Facebook Page.  You may have the same question as someone else.  If you don’t have a Facebook account, feel free to email us.

October 21, 2010 1 Comment (Filed Under: Halloween, Holidays )

Comments

  1. Giggly Girls says

    October 27, 2010 at

    What? No pictures of the explosion? LOL

    Awesome cooking project!

    Reply

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