Lesson 2

Plate Tectonics

Is Earths crust moving

Is Earths crust moving

Geologist is a scientist who examines rocks

Is Earths crust moving

Geologist is a scientist who examines rocks

Theory of Continental Drift: Wegener’s theory of the continents moving apart

Is Earths crust moving

Geologist is a scientist who examines rocks

Theory of Continental Drift: Wegener’s theory of the continents moving apart

Continental drift theory was helped to be proven by the fossils left behind

Is Earths crust moving

Geologist is a scientist who examines rocks

Theory of Continental Drift: Wegener’s theory of the continents moving apart

Continental drift theory was helped to be proven by the fossils left behind

Supercontinent: PANGEA

What causes the Ocean floor to spread

What causes the Ocean floor to spread

Plate Tectonics explain how forces cause the Ocean Floor to spread

What causes the Ocean floor to spread

Plate Tectonics explain how forces cause the Ocean Floor to spread

Magma: is hot melted rock that causes tension or a stretch or push on the plates

Cooling magma forms the mid-ocean ridge

How do Mountains form

How do Mountains form

Compression: Squeezing or pushing together of the crust this produces folded mountains

How do Mountains form

Compression: Squeezing or pushing together of the crust this produces folded mountains

Shear: Plates rub past another this produces faults