Earth’s Structure and Layers
Physics ⇒ Earth and Space Physics
Earth’s Structure and Layers starts at 6 and continues till grade 12.
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See sample questions for grade 11
A geologist is studying a rock sample that originated from a depth where temperatures are about 4,000°C and the material is mostly liquid. From which layer is the sample most likely taken?
Calculate the pressure at the base of the Earth's crust if the average density of the crust is 2,700 kg/m³ and its thickness is 35 km. (Assume g = 9.8 m/s²)
Describe the main difference in composition between the Earth's core and mantle.
Describe the process of convection in the Earth's mantle and its significance.
Explain how the study of seismic waves helps scientists understand the structure of the Earth's interior.
Explain why seismic waves change speed and direction as they travel through different layers of the Earth.
Explain why the Earth's magnetic field is important for life on Earth.
Name the two main types of Earth's crust.
Seismic S-waves cannot travel through which layer of the Earth?
The Earth's core is primarily made up of which two elements?
What is the approximate average thickness of the Earth's crust?
Which layer of the Earth is described as a rigid, brittle shell that includes the crust and the uppermost mantle?
Which layer of the Earth is responsible for generating the planet's magnetic field?
