Plate Tectonics

Front

This is an idea that all continents were once joined together.

Back

Continental Drift

Front

Proofs that plates were together millions of years ago: Fossils, Similar landforms on each continent, Rocks, Continental Drift. Which one is NOT a proof?

Back

Continental Drift

Front

Who proposed the idea of Continental Drift Theory?

Back

Alfred Wegener

Front

What was the name given to the super huge continent?

Back

Pangea

Front

Earth’s rocky crust is ______ and ______ on the asthenosphere.

Back

moving and floating

Front

__________ in the mantle of earth create the movement of plates.

Back

Convection Currents

Front

The 2 types of crusts are:

Back

Oceanic and continental

Front

The theory of plate tectonics explains

Back

how continents have changed position over time.

Front

The Continental and Oceanic crust of the Lithosphere _____ and move around very slowly on the Asthenosphere due to the Convection Currents (uneven heating in the Mantle)

Back

float

Front

Which type of crust is the densest?

Back

oceanic crust