Friday, April 19, 2013

Even Better DIY Silly Putty!

Best ever DIY Silly Putty homeschool science experiement

I came across this post on making your own silly putty and they had the same ingredients as we used to make Gak the other day except that they used 1/4 cup of cornstarch place of 1/4 cup of cold water.

What a difference!

The New and Improved Silly Putty

1/2 cup white glue
1/4 cup cornstarch
1/4 cup hot water
1/2 tsp Borax
food colouring (we used 8 drops for bright dough)

Mix 1/2 cup white glue and 1/4 cup cornstarch in a glass bowl (easier to clean, I think). Add the food colouring and mix again. 

In a separate bowl, mix 1/4 cup hot water and 1/2 tsp Borax until it is dissolved. Add it to the glue mixture and stir again. Get your hands in there and work the putty until it's no longer sticky. It takes a little longer for this step, than the Gak did, but it's worth it.

Best ever DIY Silly Putty homeschool science experiement

The kids really enjoyed making the Silly Putty and the Gak and trying to guess what the different ingredients would do. 

Best ever DIY Silly Putty homeschool science experiement

We also compared the results and this was the clear winner, although it made a bigger mess. It's really sticky at first. It's very stretchy, soft, and much warmer than the putty from the other day. Apparently if feels like chewed gum. :)

Best ever DIY Silly Putty homeschool science experiement

We've been having a lot of fun with this experiement and we have one more recipe to go, but it will be a little different and we'll hopefully get to it next week. 


  1. I'm sorry, but did you seriously name your kids petunia SweetPea and Ironman? I mean really, a flower a soap scent and a superhero? wow there adulthood is going to be rough.

  2. HA HA No way!! Of course not! I just didn't want to put their real names on here!! That's awesome. Thanks for the laugh!!

  3. Borax can be very dangerous. Would love it if you posted a borax free putty recipe.


You might also like: