Module 4-5

Question 1

What are the layers of the earth based on density

Answer 1

Most dense (iron and nickel) is the core. Least dense is the crust

Question 2

What are the layers of earth based on strength

Answer 2

Crust and upper mantle= cool and brittle.. break with stress

Mantle is ductile/ soft and has slow flowing movements

Question 3

All layers are solid except

Answer 3

Outer core

Question 4

Compare the lithosphere and asthenosphere

Answer 4

L- rigid layer
A-ductile layer

Question 5

Continental v Oceanic crust

Answer 5

C- thick and low density
O- thin and high density

Question 6

What are tectonic plates

Answer 6

Continental and oceanic crust. Cold, rigid plates that move on the warm flowing asthenosphere

Question 7

Where are tectonic plate boundaries?

Answer 7

Where more earthquakes, volcanoes and mountain ranges occur

Question 8

3 relative plate motions

Answer 8

Move apart- divergent
Move towards- convergent
Move past- transform

Question 9

Divergent boundary

Answer 9

New lithosphere is formed. Force pushes ridge up and new rock is created in the center thus forcing plates apart… rift or valley is created