What are the signs of chalk and salt?

Chalk signs.

White and crumbly. If you press on the entire surface of the chalk, it crumbles into small pieces. The color is white inside and outside.

The taste of lime. Some people like to eat chalk because of the lime flavor and characteristic dryness.

Salt.

White and salty. There is unrefined salt, it is darkish, and pure salt usually has a white color. Everyone knows the taste of salt.

Dissolves and crystallizes. The salt can be dissolved in warm and cold water. At home, you can make a beautiful salt crystal.