WHAT'S THAT GREEN GLOB TO GOO? Why, it is homemade Silly Putty, silly! It has been years since that fresh sticky goo got stuck on our parent's morning newspaper, or remnants of its faded residue still graced our childhood bedroom ceilings....
This was a great experiment that is extremely hands-on and fun to do with any child at ANY age! The fact that once you are finished you can put it in a cute little egg makes it even more spectacular! We made this silly putty using the following:
- 15 ml of Elmer white glue with 3 ml water (1 SPORKFUL does the trick!)
- After stirring that a bit, add 2 drops of food coloring
- While stirring the glue solution, add 15 mls of Borax which is the base solution (can be found in laundry section of grocery store)
- Then you stir it rapidly adding more base solution if needed
As Barb said, "Yes, that was fun....but why does it do that?"
It actually has a physical change, where it changes consistency. It becomes a liquid by adding the water, and then the Borax (base solution) acts as a cross-linker to tighten the consistency up and become silly putty!
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