Oil like coconut oil,petrolium flot on water.So they have low density than water
That is the specific gravity of the substance.
Specific gravity is a measurement that compares the density of an object to the density of water. It tells you how much heavier or lighter an object is compared to an equal volume of water.
The number that compares an object's density to the density of water is called specific gravity. It is a unitless quantity representing the ratio of the density of a substance to the density of water.
The object's density is compared to the density of water using a ratio known as specific gravity. It is calculated by dividing the density of the object by the density of water. If the specific gravity is greater than 1, the object will sink in water; if less than 1, it will float.
density is mass divided by volume
That is the specific gravity of the substance.
Specific gravity is a measurement that compares the density of an object to the density of water. It tells you how much heavier or lighter an object is compared to an equal volume of water.
The number that compares an object's density to the density of water is called specific gravity. It is a unitless quantity representing the ratio of the density of a substance to the density of water.
The tool that compares the density of water to that of coolant is called a hydrometer. It measures the specific gravity of a liquid (the ratio of the density of the liquid to the density of water) to determine its concentration or strength.
its because of the oils density
You need to specify the oil, since there are many oils having different densities. Some oils are less dense than water, while some oils are more dense than water. Motor oil has a density of about 0.876 g/mL ; while water has a density of about 1.000 g/mL.
"Specific gravity" or "specific density"
Different oils have different densities; usually a bit less than the density of water.
Oil is heavier than water so it sinks to the bottom.
The object's density is compared to the density of water using a ratio known as specific gravity. It is calculated by dividing the density of the object by the density of water. If the specific gravity is greater than 1, the object will sink in water; if less than 1, it will float.
The term is correctly specific gravity (also relative density) which compares the density (typically in g/cm3) to that of water (which is practically 1 g/cm3).
Hydrogen monoxide.