FLASHCARDS SC.7.E.6.1B

Front

Effects of tectonic plate movement

Back

Tectonic plate movement creates mountains, ocean trenches, earthquakes, and volcanic eruptions.

Front

Lithosphere and geological events

Back

The rigid lithosphere breaks and shifts, causing earthquakes, fault lines, and volcanic activity.

Front

Plate boundaries: Convergent

Back

Plates collide—mountains, trenches form.

Front

Plate boundaries: Divergent

Back

Plates separate—new crust forms.

Front

Plate boundaries: Transform

Back

Plates slide past—earthquakes occur.

Front

Constructive forces

Back

Volcanic eruptions build new land, and plate movements form mountains.

Front

Destructive forces

Back

Erosion wears down landforms, earthquakes destroy structures, and landslides reshape landscapes.

Front

Seafloor spreading

Back

Occurs at divergent boundaries where new oceanic crust is formed as magma rises to the surface.

Front

Subduction zones

Back

Areas where one tectonic plate is pushed under another, leading to volcanic activity and the formation of ocean trenches.

Front

Hotspots

Back

Volcanic regions thought to be fed by underlying mantle that is anomalously hot compared with the surrounding mantle, forming islands like Hawaii.