Oobleck

# Oobleck Remember Oobleck from Dr Seuss’s book, “Bartholomew and the Oobleck”?

Oobleck is a great (and very simple!) sensory project to do with children! The best part is this non-toxic, simple recipe takes only 2 ingredients and is ready in moments to start playing and learning some fascinating non-Newtonian Oobleck Science! Try punching it then pick it up and let it run through your fingers. Walk on it, but if you stop, you’ll sink in!

**Ingredients** 2 cups cornstarch 3 drops food coloring 1 cup warm water Large bowl or pie plate Yields 4 cups

**Directions**

Mix the cornstarch and water together with your hands so you can feel when it is all mixed and ready to play. It will become solid under pressure, then liquefy when pressure is removed. It helps if you can have a helper ready to add a little water or cornstarch if you feel it needs it.

NOTE: Never put Oobleck down the drain or you will get a BIG bill from the plumber as it can harden and clog the pipes. Simply scrape it into the garbage and then wash everything with lots of water. If it falls on the floor, let it dry. The water will evaporate, leaving just the cornstarch powder which you can sweep up.

_**Did you Know?** Oobleck, a mixture of cornstarch and water, can act as both a liquid and a solid depending on the pressure applied. This is an example of a non-Newtonian fluid._