This is a recipe for students to go home and make their own Oobleck with their parents! If you aren't familiar with this wondrous product, oobleck contains properties of both a solid and liquid. It is a combination of corn starch and water. When you move it around quickly, it feels solid. However, if you let it lie still, it will sift through your fingers.
After making the Oobleck, students are asked to describe how it exhibits both solid and liquid properties, and also how it can be likened to quicksand.
Rather than using this as a take-home activity, students could also complete it in class as a science lab.