Science 10: Lesson 2 - Collide, Move Apart, and Slide

Who is the father of plate tectonics theory?

Under ---------- lies the ideas of the solid and fluid layers of the Earth, which are the lithosphere and asthenosphere.

Under the plates tectonic theory lies the ideas of the solid and fluid layers of the Earth, which are the ------ -------- ---------.

Under the plates tectonic theory lies the ideas of the solid and fluid layers of the Earth, which are the ------ -------- ---------.

What is the driving mechanism of plate movement?

• The Asthenosphere

• The Convection Currents

• The Convection Cells

• The Nuclear Fusion and Fission at the core

Has an average density of 2.7g/cm3 and a thickness of 35-70km. Its primary composition is granite, a low density, light-colored, felsic igneous rock.

This is a low density, light colored, coarse-grained, felsic igneous rock, which makes up most of the Continental Crust.

Has an average density of 3.0g/cm3, with a thickness of 7-10km. It's primary composition is Basalt, a high density, dark-colored, fine-grained, mafic, igneous rock.

This is a high-density, dark-colored, fine-grained, mafic, igneous rock, which makes up most of the Oceanic Crust.

It is a ductile layer under the lithosphere.