Question

Which of the following has the highest density?
A.Kerosene
B.Water
C.Iron
D.Wood

Answer 1

Hint: The density of a substance defines how a substance will be for a given size. It is an intrinsic property. It is independent of location, such as change in planet.

Complete answer:
- Density is a measure of how a substance will be for a particular volume. To be accurate, it is defined as the mass per unit volume of the substance.
- This implies that a particular substance weighs a particular amount for a particular volume of the substance.
- Density is an intrinsic property, i.e., it is independent of the size in which it was used in the measurement. If we increase the size which was used, the mass increases proportionally, hence, density is constant.
- The densest material would have more mass per unit volume. It would have its atoms packed very closely.
- Iron has the highest density among all the given substances. The particles are closely packed with each other, and thus volume occupied is low, making Iron metal denser.

Additional information:
Osmium is known to be the densest metal on Earth. It has density double to that of lead.

Note:
As we speak density is said to be intrinsic property does not signify that it is totally independent of other factors which may affect mass or size. For example, density is affected by temperature, which can make the volume of a substance increase for a particular mass.