Density ofsubstance is theto the densitI densityThedatioofwater(it

1.	Density ofsubstance is theto the densitI densityThedatioofwater(it
Answer» Answer: Density Density is commonly expressed in units of '’grams PER cubic centimetre” or “kilograms per cubic metre” in SI unit. Density of the substance may be 10, 100, 1000, 5000, 20000, or 10⁷ kilogram per meter³. Do you have any idea about 20000 kilogram per cubic metre ! . But ,you know how much LENGTH is ONE metre or one kilometre. So to compare and UNDERSTAND the density of the substance we compare the density of water. It is CALLED relative density of the substance. If the relative density of the substance is less than one it floats on water. If it is 5,then the substance is 5 times thicker than water, So it will sink in water.

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Density Density is commonly expressed in units of '’grams PER cubic centimetre” or “kilograms per cubic metre” in SI unit. Density of the substance may be 10, 100, 1000, 5000, 20000, or 10⁷ kilogram per meter³. Do you have any idea about 20000 kilogram per cubic metre ! . But ,you know how much LENGTH is ONE metre or one kilometre. So to compare and UNDERSTAND the density of the substance we compare the density of water. It is CALLED relative density of the substance. If the relative density of the substance is less than one it floats on water. If it is 5,then the substance is 5 times thicker than water, So it will sink in water.

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