Plate Tectonics Final

The earth's plates, rigid slabs of rock, "float" on the ___ .

• asthenosphere

• lithosphere

• mantle

• granitic rock

The earth's outer shell is divided into slabs of rock called ______ .

• continental plates

• crustal plates

• trench plates

• tectonic plates

Label the ages of the oceanic crust.

a

b

Older crust

Younger crust

Continental crust

Tags

NGSS.MS-ESS1-4

At which plate boundary is new crust formed?

• divergent

• convergent

• continental

• transform

Match the following

• Convergent boundary

• A plate boundary where two tectonic plates move apart from each other

• Subduction

• A plate boundary where two tectonic plates slide horizontally past one another

• Transform boundary

• A plate boundary where two tectonic plates move toward each other and collide

• Divergent boundary

• process in which two lithospheric plates of different densities converge and the denser one sinks into the mantle beneath the other

Tags

NGSS.MS-ESS2-3

Drag the labels to the correct the locations on the diagram.

a

b

c

d

e

convergent boundary

old crust destroyed

Mid-ocean Ridge

new crust created

trench

Tags

NGSS.MS-ESS2-3

Match the following

• Plate boundary

• • thicker, less dense, forms landmasses, composed mostly of granite, generally older than oceanic crust

• Continental crust

• Boundary where two tectonic plates meet

• Oceanic crust

• thinner, more dense, located under oceans and seas, composed mostly of basalt, generally younger than continental crust

Label each plate boundary.

a

b

c

Convergent

Transform

Divergent

Tags

NGSS.MS-ESS2-3

According to the graph, rock samples found 700 km from the Mid-Atlantic Ridge are approximately ​​ ​ (a)   . Rocks found 300 Km from the Mid-Atlantic Ridge are ​​ (b)   .

• 45 million years old

• 20 million years old

• 70 million years old

• 30 million years old

• 60 million years old

Tags

NGSS.MS-ESS1-4

According to the graph, how many kilometers from the Mid-Atlantic Ridge are rock samples that are 75 million years old? ​

​ (a)  

• 1,150 Km

• 3 Km

• 1,300 Km

• 800 Km

• 1,000 Km

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3