Discuss the Density- Why do the planets’ densities differ? Exploring the Density of Planets in the Solar System

Explore the Solar System’s Density of Planets

There are many factors that can affect the density of the planets within the solar system. Although the average density for all planets is 5.5 g/cm3, each one is different in terms of its specific composition. A planet’s specific density can be affected by its mass, size and composition. The Earth has a density of 5.5g/cm3, the Moon is at 3.3g/cm3, Mars is at 3.9g/cm3. A few factors can explain the differences in density between planetary bodies (Justus 2019, 2019). First, each planet’s composition can affect its density. Earth’s core is comprised of nickel and iron, and has a thick outer layer and rock crust. This gives the planet more density than its counterpart, the Moon’s smaller core with a predominantly rock mantle. The density of each planet is affected by its mass and size (Justus 2019, 2019). For example, the Earth is more dense because it’s larger than the Moon and therefore more mass. Cont…

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