How to Make Green Goop

Create a thick, green goop at home

It's sticky, slimy, messy and you can make it at home. Green goop may keep kids and even adults entertained. There are a couple different methods to making green goop. One method requires cornstarch, while the other requires white glue. Each type of goop has a different consistency. Cornstarch goop is thick and gives the illusion of going from a solid to a liquid. Glue goop is a bit thinner and more stretchy.

Things You'll Need

• 3 disposable or throw-away bowls
• 1 cup corn starch
• Green food coloring
• 3 disposable spoons
• 1 cup white glue
• 1 tbsp. borax
• Air-tight containers
• Resealable plastic bags

Instructions

Cornstarch Method

1. Measure 1 cup corn starch and pour into a bowl.

2. Pour 1/2 cup water into the cornstarch.

3. Drop in a couple of drops of green food coloring.

4. Mix the ingredients together and add more food coloring if necessary.

5. Use the 2-to-1 method when measuring for this recipe. You want two parts corn starch per one part water.

Glue Method

1. Set out two disposable bowls.

2. Mix 1 cup white glue and 1 cup water in one of the bowls.

3. Mix 1/2 cup hot water and 1 tbsp. borax in your second bowl, until the borax dissolves in the water.

4. Add a few drops of green food coloring to the borax mixture. The more food coloring you add, the darker the goop.

5. Pour the borax mix into the glue mix slowly, and stir until everything is incorporated. Mix everything together with your hands until it stretches and has a gooey consistency.

Tips & Warnings

• Keep both types of goop in an air-tight container or resealable plastic bag for a couple of weeks.

References

• BBC; Edited Guide Entry: How to Make Green Goo/Gloop; July 2006
• Ladies' Home Journal: How to Make Green Slime
• Science Bob: Experiments: Make Your Own Slime