Many thanks to my former coworker, Mary Ellyn, for the link to learn how to make oobleck, as illustrated in this video:
http://video.google.com/videoplay?docid=-5098579066130741445
And yes, that noise at the end is my daughter wiping out and hitting her eyebrows on a shelf on the way down ... the bruise should fade in a day or two (or 14).
We used to make this in class to celebrate Dr. Suesse's birthday. Caution: If it gets in Liza's hair she will not like it!
ReplyDeletemimi
You need to try mixing just a little bit of Borax laundary detergent into Elmers Glue (or generic equivalent). With a little bit of Borax, you get slime. With a lot of Borax, you get a bouncy ball. You can break the cross-linking in the slime with a little bit of acid.
ReplyDelete- MLF
We were talking about colloids yesterday at work. Remembering your video, I brought up the colloid formed from cornstarch and water. This lead to a nice discussion on the mixture and how the solids get tangled at high rates but can slide past each other at lower rates.
ReplyDeleteThanks for the example!
- MLF
It is also fun to slap the puddle of oobleck. The high shear from the slap prevents it from splattering!
ReplyDelete