Make your glow-in-the dark slime

Halloween is the right time to do disgusting, filthy … but also surprising things.
On this occasion, Curiokids suggests you to make glow-in-the-dark slime in complete safety.

You will need:

From 6 years

Difficulty : medium

This experience requires the help of an adult

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Let's experiment

Pour the white school glue into your bowl.

Add water and mix well.

Add a little food coloring, just enough to tint your mixture.

Now add the 1/2 tablespoon of baking soda and mix to obtain a perfectly homogeneous preparation.

Add a tablespoon of glow-in-the-dark powder or the equivalent of glow-in-the-dark paint. Mix well.

Now you will make the slime. Add 1/2 teaspoon boric acid eye solution (or contact lens solution). The slime will form instantly.

Knead your mixture with your fingers… you will obtain a quality slime very quickly.

Turn off the light and watch! Wow, it glows in the dark.

Understand the experiment

Is slime a liquid or a solid ?

Slime is a pretty amazing material. If you stretch it gently, you will get long filaments. But if you stretch it with a sharp blow, it immediately breaks like a breadstick.

The question is whether slime is a liquid or a solid.

Indeed, when you throw it on a table, it bounces back like a magic ball, keeping its shape and size.

But if you drop it into a container, it takes on the shape of the container, like water in a glass.

In reality, slime is what is called a non-Newtonian fluid.

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Slime, a non-Newtonian liquid

Slime sometimes behaves like a liquid, sometimes like a solid. If you put enough pressure on it, its viscosity increases to the point that it behaves like a solid. If you don’t put any pressure on it, it will flow like a liquid.

Did you know?

Non Newtonian fluids in nature

Lava, honey, and ketchup are all examples of non-Newtonian liquids like slime.

Artistic
touch

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