Why do tectonic plates move?

Moving PlatesLithosphereTectonic plates make

up a part of Earth called the lithosphere.

Litho- means rock and sphere- means ball.

The lithosphere is the solid, rocky layer of Earth.

Lithosphere includes the crust, with oceans and continents, and the rigid upper mantle.

The layer of Earth below the lithosphere is the asthenosphere.

It is not rigid and moves like silly puttyWhen the asthenosphere heats up from

moving around is flows like a thick liquid. A sharp, quick force will snap it like a solid.

Moving PlatesAsthenosphere

Temperature increases steadily as you move deeper into the asthenosphere.

Deeper in the asthenosphere the mantle is partly melted and moves like syrup.

The heated parts rise and begin to cool near the top.

As the cooler parts get colder they begin to sink and the cycle starts all over again.

Convection Current Cycle

Boiling pasta

What example did we see in our everyday life that uses

convection current?

Pasta Earth

How do plates interact?

Type of plate:Colliding plates- plate

come together

Separating plates- plates move away

Sliding plates- plates move past each other

Type of boundary:

Convergent boundaries

Divergent boundaries

Transform-fault boundaries

Colliding Plates

Separating plates

Sliding Plates

Separating plates

Sea-floor spreading is an example of what kind of

plate interaction?

Mountains

What kind of features occur along colliding boundaries?