Internal Structure of the Earth

Labelling

Label the image

Drag labels to their correct position on the image

crust

inner core

outer core

mantle

Multiple Choice

Why is it important to study the internal structure of the Earth?

• To understand earthquakes and volcanic activity

• To predict weather patterns

• To learn about animal habitats

• To improve transportation systems

Multiple Choice

What is the difference between magma and lava?

• Magma is molten rock above the surface, lava is below the surface

• Magma is molten rock under the surface, lava is above the surface

• Magma is solid rock, lava is liquid rock

• Magma is cooler than lava

Open Ended

How do you think scientists discovered what the interior of Earth is like?

Open Ended

List and briefly describe the four distinct layers of the Earth.

Multiple Select

Which layers of the Earth are solid, and which are liquid or semi-solid? Select all that apply.

• Solid Crust

• Semi solid upper mantle

• Liquid mantle

• Outer core

Open Ended

Explain how the mantle's viscosity affects its movement and flow within the Earth.

Multiple Choice

What causes convection currents in the mantle, and what is the state of the outer core?

• Convection currents are caused by cold spots, and the outer core is solid.

• Convection currents are caused by hot spots, and the outer core is liquid.

• Convection currents are caused by hot spots, and the outer core is solid.

• Convection currents are caused by cold spots, and the outer core is liquid.

Multiple Choice

Which layer of the Earth is located between the mantle and the inner core?

• Crust

• Upper Mantle

• Outer Core

• SIAL

Multiple Choice

Which elements are primarily found in SIMA, and where is SIMA located in relation to SIAL?

• Silicon and Magnesium; SIMA is found under SIAL

• Silicon and Aluminum; SIMA is found above SIAL

• Magnesium and Iron; SIMA is found beside SIAL

• Aluminum and Iron; SIMA is found under SIAL

Open Ended

Explain how the thickness of SIMA varies between oceanic and continental crust, and what effect this has on the structure of the lithosphere.

Open Ended

Describe the process of isostatic compensation and provide an example of where this occurs.

Multiple Select

Which of the following statements about isostasy are correct?

• The crust floats on the plastic mantle.

• Weight added to the crust depresses it into the mantle.

• Isostasy only occurs during an ice-age.

• Isostasy is the process by which continents rise out of the mantle when weight is removed.

Multiple Select

Select all statements that are true about the continental crust.

• It is thicker underneath continents than oceans.

• It is divided into plates that float on the mantle.

• It is between 2,900-5,000 km thick.

• Temperature rises with depth.

Open Ended

Explain how the process of lava cooling relates to the formation of new crust on Earth.

Multiple Choice

Which of the following statements best describes the internal structure of the Earth?

• The Earth is made up entirely of solid rock.

• The Earth has layers including gases, lava, and solid rock.

• We can see all layers of the Earth from the surface.

• The Earth is hollow inside.