Earth’s Structure
Geography ⇒ Physical Geography
Earth’s Structure starts at 6 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Earth’s Structure.
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See sample questions for grade 9
Describe how scientists study the interior of the Earth.
Describe the composition of the Earth's mantle.
Describe the difference between oceanic and continental crust in terms of composition and thickness.
Explain how the Earth's magnetic field is generated.
Explain the difference between the lithosphere and the asthenosphere.
Explain the term 'discontinuity' in the context of Earth's structure.
Explain why oceanic crust is denser than continental crust.
Explain why seismic waves change speed and direction as they travel through the Earth.
Explain why the Earth's core is so hot.
Name the scientist who first proposed the idea of continental drift.
Name the two types of Earth's crust.
State one reason why it is difficult to study the Earth's interior directly.
The S-waves generated by earthquakes cannot travel through which layer of the Earth?
What are the three main layers of the Earth?
What is the main difference between the outer core and the inner core?
