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Make your own Salt

By Saakshi Khanna; Illustrations by Shiju George

What is the crop of farmers in the desert fields of the Rann of Kutch in Gujarat? The answer is: salt! Farmers make rectangular fields with borders so that the water does not drain away. The water stands still under the sun and evaporates. Once the water evaporates, all that can be seen is salt. For, almost 70 per cent of the earth's surface is covered by salt water.

To test out how they do it, just do this simple experiment at home.

All you need is:

1. One tablespoon of salt.

2. A plate with raised edges.

3. Spoon.

4. Two cups of water.

Step 1: Mix the salt in water thoroughly. If mixing in a plate is inconvenient then do so in a bowl and then pour the salty water in the plate with raised edges.

Step 2: Keep the plate out in the sun until the water fully evaporates.

You will see tiny crystals of salt left behind in the plate.