1. Crust
2. Mantle
3. Outer Core
4. Inner Core
5. The crust is the outermost layer of the Earth and is made up of solid rock. It is relatively thin compared to the other layers.
6. The mantle is the thickest layer of the Earth, located between the crust and the outer core. It is composed of hot, semi-solid rock that flows slowly over time.
7. The outer core is a liquid layer made mostly of iron and nickel. Its movement generates Earth’s magnetic field.
8. The inner core is the innermost layer of the Earth, composed of solid iron and nickel due to extreme pressure, despite the high temperature.
9. Earth’s layers are arranged in order of increasing density from the surface to the center: crust (least dense), mantle, outer core, inner core (most dense).
10. Scientists study Earth’s layers using seismic waves generated by earthquakes, which travel differently through materials of varying densities and states (solid vs. liquid).
Parent Tip: Review the logic above to help your child master the concept of earth s structure worksheet.
