12 Questions
What is the Earth's structure composed of?
Solids, liquids, and gases
What is the purpose of the Moho discontinuity?
To separate the crust from the mantle
What is the temperature range in the mantle?
Up to 5 000°C
What is the composition of the outer core?
A combination of nickel (Ni) and iron (Fe)
Why is the inner core solid?
Due to extremely high pressures
What is the thickness of the continental crust?
6-9 km
What is the rock cycle defined as?
The ongoing process of making, breaking down and remaking any one type of rock to recreate another type
How do sedimentary rocks change into metamorphic rocks?
Through high pressure and temperature
What is the characteristic of granite?
Very hard and contains large crystals
What happens to sediments deposited by wind, water, and ice?
They are compressed into sedimentary rocks
What is the process that breaks down rocks exposed at the surface?
Weathering
What happens to magma that rises through the crust?
It cools and crystallizes into new igneous rock
Test your knowledge about the Earth's layers, including the crust, mantle, outer core, and inner core, as well as their characteristics and composition. Learn about the age of the Earth and the differences between the continental crust and oceanic crust.
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