Monday, June 17, 2013

Science Sunday: Glow in the Dark Potions and Goop

Credit for this activity goes to Growing a Jeweled Rose:

A black light might just be the best $16 I ever spent. We got ours from here.
We started off by making some glow in the dark water (must have UV light to get the glow going). 
Super simple: 
1. Take a sharp knife and start sawing at a highlighter
2. the casing will easily break open 
3. take out the highlighter ink and soak it in up to 6 cups of water
4. Done 

We started off with a glow in the dark volcano:
 Baking soda in cup and pour vinegar + glow water mixture over it
 Then we made some flubber using our glow water as well:
Here is the recipe we used for flubber:
Borax 1 tsp

Water 1 cup 
Glow water 1/2 cup

Elmers glue 1/2 cup (4 oz container)

1. Add 1 teaspoon of borax to 1 cup of warm water 
2. Add 1/2 cup of glue (4 oz container) to a 1 cup measuring cup and rinse glue container with warm water to remove all of the glue. The total amount of liquid water and glue should total 1 cup. Pour contents into a glass bowl and mix well with a whisk.

4. Pour the Borax solution into the glass bowl of glue mix. 
5. Mix with your hands for a moment, the goo should form almost instantly and pour out the small amount of extra water.

Concepts discussed:
acid/base reaction
Uv light
Describing texture of flubber

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