Journey to the Center of the Earth

• Earth's crust is composed of tectonic plates.
• The crust ranges from 5 to 100 km in thickness and is the outermost layer of the Earth.
• The continental crust is less dense granitic rock and is 50-100 km thick.
• The oceanic crust is more dense basaltic rock and is 5-8 km thick.
• The lithosphere is the rigid layer made up of the crust and upper mantle.
• The asthenosphere is the weak, partially molten layer where convection occurs.
• The mantle is a semi-solid layer that makes up 80% of the Earth's mass and is composed of ferro-magnesium silicate rocks.
• The outer core is the only liquid layer and is made up of molten nickel and iron.
• The inner core is solid and is composed of iron, giving the planet its magnetic features.
• Geologic events like volcanic activities and earthquakes indicate that the outer mantle is solid.

Test your knowledge of the Earth's layers and their composition with our quiz! From the tectonic plates that make up the crust to the semi-solid mantle and the molten core, this quiz will challenge your understanding of the Earth's structure. Learn about the differences between continental and oceanic crust, the rigid lithosphere and the weak asthenosphere, and the geologic events that occur within the Earth's layers. Don't miss this opportunity to expand your knowledge of our planet!