Dry Ice Snake Skin

Dry Ice Snake Skin is an interesting experiment where kids can combine soap bubbles and dry ice. Along with the oozing foam, it also creates a pattern inside a flask which resembles the skin of a snake!

Safety First! Adult Supervision Required. Don’t Eat/Drink your Experiments, Wear safety goggles where ever required

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Materials and tools required.

In the box

• Cylindrical flask: 1
• Food color
• Soap solution
• Water
• Small pieces of dry ice

Video on Youtube for the Experiment

What to Do!

1. Keep the cylindrical flask in the tray and pour some food color into it.
2. Fill half the cylindrical flask with water.
3. Pour some soap solution in it.
4. Drop a small piece of ice in the solution.

 

Images for Instructions

Working Principle of Dry Ice Snake Skin:

In this experiment, we add dry ice to colored water and soap solution to see a snake skin like pattern!

On adding dry ice to coloured water, it reacts with coloured water leading to carbon dioxide gas and water vapor. This is because of the sublimation of dry ice.  So, we have coloured water, soap and gas! Three of them combine to give us soapy bubbles with gas inside.

When you look carefully, you can see that there are many soap bubbles sticking to each other and to the flask. It can be seen that there is a coloured outline of soapy water that traps gas to form white bubbles!  These white bubbles with the coloured outline stick to each other and along the flask giving rise to a pattern similar to the skin of a snake!

Tip: To get a better snake skin, one should add a very dark colour to the water so that you can see the outline of the pattern very well!

 

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