Oobleck Recipe

What You Need:

• 2 cups cornstarch (also called cornflour)
• 1 cup water
• Food coloring (optional)

Instructions:

1. In a large bowl, mix the cornstarch and water together.
2. Stir until the mixture thickens and forms a gooey, slime-like consistency.
3. If desired, add a few drops of food coloring for a fun twist.
4. Play with your oobleck! Press down quickly with your hands or a spoon, and watch it act like a solid. Move slowly, and it will act like a liquid.

Why Is It Fun? Oobleck is a non-Newtonian fluid, which means its properties change depending on how much pressure you apply. If you press quickly, it feels solid. If you move slowly, it behaves like a liquid. This makes it a great hands-on science experiment to teach kids about how materials can change based on pressure.