Invisible Water – Experiment with Polymer & Water

INVISIBLE WATER is a fun Science experiment with Water – where kids can make water disappear from a cup using a polymer with a very particular property.In this Chemistry experimen -kids get to learn more about polymers.

Invisible water

Safety First! Adult Supervision Required. Wear safety goggles where ever required

Materials and tools required for the Experiment

Material required

Materials In the box

Paper cups
Transparent bowls
Mixing spoons
Food colors
Gel polymer powder
Weighing Scale
Water
10 ml measuring Cylinder

Youtube Video Tutorial for the Experiment

Images & Step by Step for Instructions for Experiment

Step 1: Mix few drops of food color in a bowl of water.

Step 2: Similarly, arrange 5 bowls filled with different food colour.

Step 3: Fill the paper cups with the colors.

Step 4: Start pouring the water from the cups one by one.

Step 5: Take the test-tube filled with gel polymer.

Step 6: Put on the weighing scale and place the paper-cup.

Step 7: Press tare to bring the scale down to zero.

Step 8: Now, weigh 8 grams of gel polymer powder in the paper cup.

Step 9: Fill the paper cup with the gel polymer powder. Pour 10ml of colored water uniformly in the paper cup.

Step 10: Invert the paper cup and tap it.

Working Principle of Invisible Water Experiment :

In this experiment, we add a gel polymer to the color water. The gel polymer used is Sodium Polyacrylate. It is also known as waterlock. It can absorb water as much as 200 to 300 times of its actual mass. When we add the gel polymer to the solution, it absorbs all the moisture in the solution converting it into a gel like form.

If you keep on adding water, you’ll notice that the gel polymer will grow rather than become a gel. A gel polymer can grow up to 100 times it original size.

It is also used as thickening agents, laundry detergents, coatings, artificial snow and more. When salt is added to the blob, the salt makes the gel release water. The gel collapses and returns back to the liquid form.

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