Quiz on Interior of the Earth (Geography)

1. What is the outermost solid layer of the earth called?

2. What is the upper portion of the crust called?

3. What is the layer below sial called?

4. What is the layer below the crust called?

5. What is the magma called when it reaches the surface through volcanic activity?

6. How thick is the core?

7. What is the inner core called?

8. What is the temperature at the centre of the earth?

9. Which waves of earthquake can travel through all layers of interior?