How to Make Stuff With Cornstarch and Water

Cornstarch is a white powder made from endosperm, the starchy part of the corn kernel.

Cornstarch and water can be used to make a variety of projects, including a quicksand-like goo. If you enjoy playing with silly putty or fart putty, then making a quicksand concoction will be a pleasant activity. This mixture will act like a solid and a liquid through the laws of suspension and viscosity. Thus, making quicksand goo with cornstarch and water is a both a mess and a science class all-in-one.

Things You'll Need

• Cornstarch
• Large mixing bowl
• Pitcher of water
• Spoon
• Gallon-size zipper-lock bag
• Food coloring

Instructions

1. Pour 4 oz. of cornstarch into a mixing bowl.

2. Add 1/2 cup of water while slowly stirring.

3. Add more cornstarch and water. You want 10 parts cornstarch to 1 part water.

4. Continue combing the mixture until it has the consistency of honey. The mixture gets thicker when more cornstarch is added.

5. Add food coloring, if desired, to make the substance look more exciting.

6. Pour the mixture into a closed tupperware dish or a large zipper-lock bag for later use.

Tips & Warnings

• Do not pour the mixture into the drain when finished, because it will clog the pipes. Instead, dispose of it in the garbage.

References

• Steve Spangler Science: Cornstarch Science - Quicksand Goo
• Cook Think: What is Cornstarch?