- Crust: The outermost layer, consisting of continental and oceanic crust.
- Mantle: Located beneath the crust, divided into upper and lower mantle; includes the asthenosphere where convection currents occur.
- Outer Core: A liquid layer composed mainly of iron and nickel, responsible for Earth’s magnetic field.
- Inner Core: The innermost layer, solid due to extreme pressure, composed primarily of iron and nickel.
- Composition of Inner Core: Mostly iron and nickel.
- Thickness of Inner Core: Approximately 1,220 kilometers (760 miles).
- State of Matter of Inner Core: Solid.
Parent Tip: Review the logic above to help your child master the concept of earths interior worksheet.