Tectonic Plates and Boundaries Flashcards
What are the three types of plate boundaries?
Convergent, divergent, and transform boundaries
Identify the different images of plates. Which one is which?
Convergent collides together and can form mountains
Divergent goes apart and allows room for new rock
Transform slides against each other
- Convergent
- Transform
- Divergent
- Convergent
- Transform
Convergent with…
Land + Land
Land + Ocean
Ocean + Ocean
Mountains
Trench
Volcano
Divergent with…
Land
Ocean
Rift valley
Ridge and more ocean floor
Transform boundaries can cause…
(HINT: 3 things)
Earthquakes, offsetting, and faults
At every boundary you can find…
Earthquakes
Wegener believed that the continents ________ which is why they are no longer right next to eathother.
They drifted apart
What evidence did Wegener have?
(HINT: There are four reasons)
Fossils, the continents fit like puzzle pieces, rock pattern, and matching mountain ranges
Why was Wegener not believed?
He had no explanation why the continents drifted apart
What is a tectonic plate?
A piece of earth crust
What is beneath a tectonic plate?
The mantle and magma
How do scientists believe the plates move? (Use the words convection currents, crust, and mantle)
Convection currents in the magma making up the mantle cause the plates to move.
The crust is pushed around by…
Convection currents
Convection currents push around the…
Earths crust
The ______ (youngest/oldest) core samples are near ridge’s. The samples get ______ (older/younger) the further you move away from the ridges on both sides
The YOUNGEST core samples are near ridge’s. The samples get OLDER the further you move away from the ridges on both sides
