Question

1. compare and contrast the earths crust, mantle, and core including temperature, density, and composition.

Explanation:

The Earth's crust is the outermost layer, thin, less dense (about 2.2 - 3.0 g/cm³), composed of silicate rocks, and cooler (surface - few hundred degrees). The mantle is thick, more dense (3.3 - 5.5 g/cm³), made of silicate minerals, and hotter (about 500 - 4000°C). The core (inner solid, outer liquid) is densest (10 - 13 g/cm³), composed mainly of iron and nickel, and hottest (up to 5500°C).

Answer:

The Earth's crust is thin, less dense (2.2 - 3.0 g/cm³), silicate - rock composed, cooler (surface - few hundred degrees). The mantle is thick, more dense (3.3 - 5.5 g/cm³), silicate - mineral made, hotter (500 - 4000°C). The core (inner solid, outer liquid) is densest (10 - 13 g/cm³), iron - nickel composed, hottest (up to 5500°C).