How to make some slime that's actually hard, or is it soft?

In this experiment you will make something that is liquid when it's under pressure and it's close to solid when it's squeezed.

Difficulty: Easy

Instructions

Things You'll Need:

• test tube
• water
• bowl
• teaspoon
• cornstarch

1. Fill the test tube to the "12" mark with water. Pour the water in a bowl. Now do that again!

2. Add a level teaspoonful of cornstarch to the bowl and stir. Keep adding a little cornstarch and stirring until it slowly runs when you tip the bowl.

3. Now pick up the mixture and try to squeeze it. Pretty amazing huh?

Tips & Warnings

• Cornstarch is a polymer made up of long, chainlike molecules. When you squeeze the mixture, the molecules become tangled, that's why it stiffens.
• This is a very very messy project. It's almost impossible to avoid a mess.