Earth's Plates

A = divergent boundary

B = convergent boundary

A = transform boundary

B = divergent boundary

A = convergent boundary

B = transform boundary

A = transform boundary

B = convergent boundary

A

B

C

D

African and South America had different climates that cause it to migrate.

The 2 continents were once joined.

Mesosaurus migrated across frozen land bridges.

The 2 continents had underground tunnels that connected them.

Plates drifting apart cause faults that cause earthquakes.

Plates form cracks on the ocean floor when they move away from each other.

Magma rises up and solidifies , forming new rock layers when plates move away from each other.

Oceanic crust is pushed together when plates drift apart.

Continents and oceanic plates have different densities.

Seismic activity occurs along plate boundaries.

Less dense plates subduct.

Sizes and shapes of continents remain the same.

Climate became cooler.

Landmasses formed a permanent arrangement

New landforms were created.

Animals were unable to swim.

convection currents in mantle

Conduction of heat from the core

movement of the ocean currents

pressure on the mantle by the plates

composition of ocean water is the same on both sides of the Atlantic Ocean

identical rocks of the same type and age are found on the ocean floor on both sides of the Atlantic Ocean

mountain ranges with the same rock type, structure, and age are on continents separated bo the Atlantic Ocean

ancient fossils of the same species of extinct plants and animals are found in rocks on both sides of the Atlantic Ocean

A

B

C

D

formation of new islands

formation of new faults

addition of new rocks to the land

formation of folded mountain ranges