Cornflour Goo

by Deb on October 1, 2010

Mixing Goo
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{ 11 comments }

Cass October 1, 2010 at 11:09 am

My favorite of all your blogposts. I can’t wait to try that one at home. I even think an older kid could try and replicate the myhtbuster experiment in a small wading pool.
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shar October 1, 2010 at 3:10 pm

I have been making ‘goop’ for years but didn’t understand what was really happening with it. A really interesting post – thanks so much! BTW, when resources have been tight I have added boiling water (and stirred in very quickly) to some of the goop at the end of a session to make finger paint base or paint extender for the next day. It dilutes the pigment of the paint a lot but OK if the process of painting or finger painting is the objective rather than the picture at the end 🙂

Lisa October 3, 2010 at 2:04 pm

I don’t know who had more fun doing this – the kids or me! It was a great to be able to explain to my 3yo how it worked when she asked too. Thanks Deb!

Kelly B October 5, 2010 at 4:54 pm

Another goop play. I REALLY am meant to do it this week. Love it!
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cathy@nurturestore October 6, 2010 at 3:24 am

I think goop has such a mysterious texture to explore – and as you say it’s a great messy play activity for babies. Hope you’ll come and share this on with us at the Play Academy on Friday. Cathy 🙂

amandab October 7, 2010 at 10:07 am

Thank you for the diagrams and explanation, as although it was fun to play with I really should have spent more time talking about it when we played with it. Now, armed with this, it must be time to play with it again 🙂

Colleen - Sunrise Learning Lab October 8, 2010 at 4:35 pm

Very cool! Thanks for sharing! We have made something gooey kind of like this, but it is more like slime. Thanks for sharing the Mythbusters clip, too. We are big Mythbusters fans here.
Have a nice weekend,
Colleen:)
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Marita October 10, 2010 at 8:00 pm

Ah Ha! I think you may have just pinpointed my problem with home made moon sand – I used wheaten cornflour. 😀 Now the weather is warmer and we can experiment outside I’m willing to give making moon sand another go too 😀
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Christie - Childhood 101 October 11, 2010 at 10:17 pm

I was just writing about goop myself today 🙂 I have enjoyed it with many, many preschool aged children whilst never really understanding how it works… now I know LOL
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Skyebie April 9, 2011 at 10:12 am

Mine didnt work very well

Deb April 9, 2011 at 10:26 am

I have two possible suggestions, check it was genuine corn cornflour not wheaten cornflour. Some things are sold as cornflour because they are very fine, but they are really from wheat.
And look at how much water you’re using. You need much less than you expect, about half as much water as you have cornflour.

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