Chapter 2 CKLA Unit 5 Grade 4 Geology

Front

What is the rate at which tectonic plates move apart along the mid-ocean ridge in the Atlantic Ocean?

Back

About .8-2 inches a year

Front

What is the role of heat and pressure in the mantle?

Back

They drive the movement of tectonic plates.

Front

What is the cornerstone of modern geology?

Back

Plate tectonics.

Front

What process creates new crust along mid-ocean ridges?

Back

Seafloor spreading.

Front

What did scientists discover about Earth's interior layers through the study of seismic waves?

Back

Earth has four main layers: inner core, outer core, mantle, and crust.

Front

What did Inge Lehmann change our view of?

Back

Earth's core.

Front

How do tectonic plates interact at plate boundaries?

Back

They move apart, collide, or slide past each other.

Front

What process is responsible for the creation of the Andes Mountains?

Back

Subduction.

Front

Effects of plate movement at different boundaries?

Back

All of the above: The occurrence of earthquakes and volcanoes, the creation of new crust and the destruction of old crust, the formation of mountains and other surface features.

Front

How do tectonic plates move?

Back

Very slowly and gradually.