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.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 8
Describe the difference between the oceanic crust and the continental crust.
Describe the role of convection currents in the mantle.
Explain how scientists know about the structure of the Earth's interior.
Explain the difference between lithosphere and asthenosphere.
Explain the term 'asthenosphere'.
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.
Name the two types of crust found on Earth.
What are the three main layers of the Earth? (1) Crust, Mantle, Core (2) Lithosphere, Atmosphere, Hydrosphere (3) Crust, Lithosphere, Asthenosphere (4) Mantle, Lithosphere, Core
What is the approximate thickness of the Earth's crust beneath the continents? (1) 5-10 km (2) 30-50 km (3) 100-200 km (4) 500-700 km
What is the average thickness of the Earth's mantle? (1) 5-10 km (2) 30-50 km (3) 2,900 km (4) 6,400 km
What is the main reason for the high temperature inside the Earth? (1) Sun's heat (2) Radioactive decay (3) Ocean currents (4) Wind movement
Fill in the blank: The _______ is the layer of the Earth where convection currents occur, causing plate movement.
Fill in the blank: The Earth's _______ is responsible for the movement of tectonic plates.
Fill in the blank: The Earth's _______ is responsible for volcanic eruptions and earthquakes.
The boundary between the crust and the mantle is called the _______.
State whether the following statement is true or false: The Earth's crust is made up of only one type of rock.
State whether the following statement is true or false: The lithosphere is broken into several large and small plates.
State whether the following statement is true or false: The mantle is made up of molten rock called magma.
True or False: The Earth's crust is thicker under the oceans than under the continents.
