Earth's Layers Quiz

Which letter represents the layer that is thin, rocky, and is the least dense of all Earth's layers?

• layer V

• layer W

• layer Y

• layer Z

What is happening at point W?

• Magma in the mantle is being heated by the hot core, causing it to rise toward the crust, then sink as it cools, the convection circuit pulling the tectonic plates.

• Water in the mantle is being heated by the hot crust, which causes it to sink toward the core where it cools, the convection circuit pulling the tectonic plates.

• Energy from the Sun heats the crust, which conducts heat into the mantle, causing the magma to warm and sink toward the core, pulling the tectonic plates.

• Energy from the Sun heats the crust, causing it to shift and pull the tectonic plates, which uses friction to heat the magma in the mantle.

Select two of the activities that are most likely at point X.

• Earthquakes

• Flooding

• Volcanoes

• Storms

• Drought

An image of Earth's layers is shown below. What is the name of region B?

• Crust

• Mantle

• Lithosphere

• Hydrosphere

Where does volcanic activity occur on the ocean floor?

• on continental slopes

• along rift zones in mid-ocean ridges

• on continental shelves

• in the trenches when sediment moves

The map shows the distribution of four types of fossils. Based on the fossil evidence on the map above, what continent was NOT connected to Antarctica, when the continents were joined together as Gondwanaland?

• Africa

• Asia (India)

• Australia

• Europe

In which of Earth's layers are the convection currents?

• the crust

• the mantle

• the inner core

• the lithosphere

The model shows a rock face with multiple layers exposed. What does the model show about the local area?

• The area was once covered in water but changed into a land-based environment.

• The area was once dry land but changed into a water-based environment.

• The area experienced a change in climate from tropical to arctic.

• The area experienced a change in climate from arctic to tropical.

Which table matches each kind of plate movement to the landform that it most likely creates?

• continental plates collide, mid-ocean ridge

• continental plates separate, trench

• oceanic plates collide, volcano

• oceanic plates separate, rift valley

• oceanic and continental plates collide, mountain

Based on the patterns shown, what can be concluded?

• Plant fossils are usually found near reptile fossils.

• The area east of the river was once a heavily forested habitat.

• There was once a body of water north of the river.

• Ancient reptiles and mammals did not share the same habitat.