EVERYDAY SCIENCE

Detailed explanation-1: -Mercury and Earth are the densest planets in the Solar System (Figure 13) with densities similar to the iron-rich mineral haematite. Saturn, the least dense planet in the Solar System on the other hand, has a density lower than that of water.

Detailed explanation-2: -The calculated density of Earth shows that it is the densest planet in the Solar system. The reason for this large value of density is that the Earth does not have gaseous components and all of its mass is concentrated and compact. This reduces the volume of the planet and increases the density value.

Detailed explanation-3: -Being a star, the sun’s density varies considerably between its outer layers and its core. On average, it has a density of 1.408 g/cm3, which is roughly one-quarter that of Earth. However, models of the sun estimate that it has a density of 162.2 g/cm3 closer to the core, which is 12.4 times that of Earth.

Detailed explanation-4: -Mercury is the second densest planet of our solar system, second only to Earth. Mercury, surprisingly, also has a global magnetic field, which exists due to an even stranger phenomenon called antifreeze. Mercury is small enough to be a moon. Jupiter’s moon Ganymede and Saturn’s moon Titan are both bigger than Mercury.

Detailed explanation-5: -Jupiter is massive because it has a large diameter (11.2 times that of Earth). Its density is only 1.33 g/cc, which is 1/4 that of Earth, and only slightly more than the 1 g/cc characteristic of water.