How to Make Goop

How to Make Goop

Goop, better known as Oobleck (named for a slime in Dr. Seuss's book Bartholomew and the Oobleck ) is a fun material to play with: At one moment it's a solid, and at the next it's a liquid it's unbelievably silly to play with, and I've witnessed adults get lost in the strange sensation of its texture. For my science friends out there, this is a dilatant material, which is one that changes its properties in reaction to external stimuli. We don't have the Dr. Seuss book (yet!), but I imagine it would be fun to read the book in conjunction with this activity.

Ages:
2 - 5
Est. Time:

How we did it:

Materials List

  1. large container
  2. cornstarch
  3. water
  4. bowl
  5. spoons