Plate Tectonic Theory

Question 1

2 layers of the earth

Answer 1

Compositional & Mechanical

Question 2

materials that consist the earth

Answer 2

compositional / chemical

Question 3

behaviour of the earth

Answer 3

mechanical

Question 4

compositional layers:

Answer 4

crust, mantle, core

Question 5

mechanical layers:

Answer 5

lithosphere
asthenosphere
mesosphere
outer core
inner core

Question 6

tectonic plates move towards each other

Answer 6

convergent

Question 7

tectonic plates move apart

Answer 7

divergent

Question 8

tectonic plates slide past each other

Answer 8

transform

Question 9

continental drift theory was discovered by

Answer 9

Alfred Wegener

Question 10

large rigid section of earth’s lithosphere

Answer 10

plate

Question 11

process of continental drift

Answer 11

heat from the core -> mantle convection current -> movement of tectonic plates -> continental drift -> geological activity

Question 12

tectonic plates float on the

Answer 12

Asthenosphere

Question 13

movements and interactions of the tectonic plates

Answer 13

plate tectonic theory

Question 14

How fast do these plates move?

Answer 14

2-10cm per year

Question 15

what state of matter is the mantle

Answer 15

semi liquid

Question 16

how many major lithospheric plates

Answer 16

7

Question 17

cause of tectonic plates movement

Answer 17

convection currents

Question 18

regions where two or more tectonic plates meet

Answer 18

plate boundaries

Question 19

Earth is a _________ planet, constantly changing due to both _____________.

Answer 19

dynamic; internal and external forces

Question 20

The interactions of plates at plate boundaries are responsible for

Answer 20

many geological features and phenomena on Earth.