To determine the properties of sand the following tests are carried out
* A glass of water is taken and some quantity of sand is placed in sand, its distinct layer is formed at top of sand.
* For detecting the presence of organic impurities in sand and it is stirred. If color of solution changes to brown, it indicates the presence of organic matter.
* The sand is actually tasted and from its taste the presence of salt is known.
* The sand is taken from a heap and it is rubbed against the fingers. If fingers are stained, it indicates that the sand contains earthy matters.
* The color of sand will indicate the purity of sand. The size and sharpness of grains may be touching and by observing with eye.
* A glass of water is taken and some quantity of sand is placed in sand, its distinct layer is formed at top of sand.
* For detecting the presence of organic impurities in sand and it is stirred. If color of solution changes to brown, it indicates the presence of organic matter.
* The sand is actually tasted and from its taste the presence of salt is known.
* The sand is taken from a heap and it is rubbed against the fingers. If fingers are stained, it indicates that the sand contains earthy matters.
* The color of sand will indicate the purity of sand. The size and sharpness of grains may be touching and by observing with eye.
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