Oobleck is a non-Newtonian fluid; it has properties of both liquids and solids. You can slowly dip your hand into it like a liquid, but if you squeeze the oobleck or punch it, it will feel solid.
Ages 5-7 (great for families to do together)
Materials Needed: mixing bowl, corn starch, water, food coloring (optional).
Instructors: Amanda Royce & Caitlin Wollack
This is a pre-recorded video with instructions on how to make your very own oobleck. Have fun playing around with it and find out how it acts differently from a normal liquid and a normal solid.
Things to try:
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Grab a handful and squeeze it. Let it ooze through your fingers.
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Make a puddle and quickly drag your fingers through it.
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Punch at the oobleck and then slowly let your fist sink in.
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Roll some oobleck into a ball. It becomes solid, but when you stop moving it, it will melt back into your hand. Try tossing it in the sky, or to a friend.
Take things a bit futher and learn more: https://www.scientificamerican.com/article/oobleck-bring-science-home/
To register visit the 4-H Science Bonanza Registration Page.
