Tectonic Plates and Continental Drift

Question 1

Where is the Core?

Answer 1

The innermost part of the Earth

Question 2

Where is the Mantle?

Answer 2

The middle region of the Earth

Question 3

Where is the Crust?

Answer 3

Outermost region

Question 4

Where is magma located?

Answer 4

Mantle

Question 5

Where is iron located?

Answer 5

in the Earth’s crust

Question 6

Where is the convection cycle located?

Answer 6

Mantle

Question 7

Where is the floating plates located?

Answer 7

on the Earth’s crust

Question 8

What are the four proofs for Alfred Wegener theory?

Answer 8

Jigsaw fit- South America and Africa fit together.

Fossil evidence- fossils that were the same begin to show different evolution.

Geologic (landform) evidence- mountains have the same age and structure on both sides of the Atlantic

Glaciation- ice sheets covered parts of Africa, India, Australia and South America

Question 9

What theory did Alfred Wagener propose?

Answer 9

Plate Tectonics

Question 10

What did Tuzo Wilson do?

Answer 10

advanced the Continental Drift theory by explaining how this occurred using Plate Tectonics.

• he said that plates are floating on the mantle (magma) and different convection currents of the magma move the plates around
• there are two types of crust: oceanic (they extend all over the earth and are broken into the 12 large and smaller plates) and continental (it moves around the top of the oceanic crustal plates)