Exploring Earth's Structure and Changes

What are the three main layers of the Earth?

• Rock, Water, Air

• Crust, Mantle, Core

• Inner Shell, Outer Shell, Surface

• Lithosphere, Atmosphere, Hydrosphere

What is the outermost layer of the Earth called?

• crust

• atmosphere

• mantle

• core

What is the layer beneath the Earth's crust?

• core

• mantle

• atmosphere

• lithosphere

What theory explains how the Earth's plates move?

• Geological cycle

• Seafloor spreading

• Plate tectonics

• Continental drift

What do we call the movement of tectonic plates?

• Plate tectonics

• Earthquake dynamics

• Plate movement

• Tectonic shifts

What natural event can occur when tectonic plates shift?

• Landslide

• Tsunami

• Volcano

• Earthquake

What is formed when magma erupts from a volcano?

• Lava or volcanic rock

• Lava cools into ice

• Magma solidifies underground

• Ash clouds form in the atmosphere

How do mountains usually form?

• Mountains form from erosion of flat land.

• Mountains are created by the movement of ocean currents.

• Mountains usually form through the collision of tectonic plates and volcanic activity.

• Mountains arise from the melting of glaciers.

What is the name of the boundary where two tectonic plates meet?

• Plate collision zone

• Tectonic plate boundary

• Tectonic plate edge

• Continental divide

What can happen when two plates collide?

• Desert formation

• Tsunamis and hurricanes

• Oceanic trench creation

• Mountains, earthquakes, and volcanic activity can occur.