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 7
Describe how scientists know about the structure of the Earth's interior.
Describe how the Earth's structure affects the occurrence of earthquakes.
Describe the difference between the oceanic crust and the continental crust.
Explain the term 'lithosphere'.
Explain the term 'seismic waves' and their importance in studying Earth's structure.
Explain why the Earth's crust is important for life.
Explain why the Earth's inner core is solid even though it is extremely hot.
Name the layer of the Earth that is semi-solid and allows tectonic plates to move.
The Earth's crust is mainly composed of which two elements? (1) Iron and Nickel (2) Oxygen and Silicon (3) Carbon and Hydrogen (4) Magnesium and Calcium
What are the three main layers of the Earth? (1) Crust, Mantle, Core (2) Lithosphere, Atmosphere, Hydrosphere (3) Inner Core, Outer Core, Lithosphere (4) Crust, Lithosphere, Asthenosphere
What is the approximate thickness of the Earth's crust? (1) 5-70 km (2) 100-200 km (3) 500-1000 km (4) 2900 km
What is the average temperature of the Earth's inner core? (1) 500°C (2) 2000°C (3) 4000°C (4) 5000°C to 7000°C
The boundary between the crust and the mantle is called the ________.
The Earth's core is divided into two parts: the ________ core and the ________ core.
The Earth's crust is broken into large pieces called ________.
The Earth's mantle extends to a depth of about ________ km below the surface.
True or False: The asthenosphere is located above the lithosphere.
True or False: The Earth's core generates the planet's magnetic field.
True or False: The Earth's crust is made up of only one type of rock.
True or False: The Earth's crust is thicker under the oceans than under the continents.
