EARTH Layers, Density, and Tectonic Plates

LAYERS

100

What is the name of the layer of Earth that is made mostly of solid iron and nickel?

Inner Core

200

Which type of rock forms the continental crust?

Granite

300

Which type of rock forms the oceanic crust?

Basalt

400

What is the correct order of Earth's layers from the center outward?

Inner core, Outer core, mantle, crust

500

What causes the Earth to separate into layers?

Density

TECTONIC PLATES

100

What force causes the movement of tectonic plates?

Convection Currents

200

Which type of plate boundary occurs when plates slide past each other?

Transform

300

What type of plate boundary is formed when two plates pull apart?

Divergent

400

What is the process called when one plate is pushed down into the mantle?

Subduction

500

Approximately how many major tectonic plates exist?

12-15

GEOLOGICAL FEATURES

100

What geological feature is created at a continental-continental convergent boundary?

Mountains

200

What event is most common at Transform boundaries?

Earthquakes

300

What is an underwater mountain range formed by divergent boundaries?

Mid-Ocean Ridge

400

What is a deep undwater valley fromed at convergent boundaries where one plate subducts?

a Trench

500

Areas where magma rises through the mantle, creating volcanic mountains as plates move over them.

Hot Spots

MOTION on Earth

100

Which layer of Earth contains Convection Currents?

Mantle

200

Tectonic Plates are the same as continents?

No

300

Which of Earth's layers gives us a magnetic field?

The Outer Core, which has liquid iron and nickel that create electrical currents due to convective and swirling motions.

400

Give two words that describe which plate subducts when crust is recycled. 

Denser, older ??

500

This is initiated by rising magma from the mantle, eventually forming deep depressions that can fill with water.  An example of this is found in Iceland. 

What is a Rift Valley?

DENSITY

100

What is the formula for finding the Density of an object?

D = M / V

200

The mass of a rock is 100g. Using the displacement method, we measured the initial volume at 60mL and the final volume measured at 65 mL.  What is the density of the rock?

65-60 = 5

100/5 = 20g

300

Which is denser, oceanic or continental crust?

Oceanic

400

The mass of a rock is 30g. Using the displacement method, we measured the initial volume at 6mL and the final volume measured at 11 mL.  What is the density of the rock?

11-6 =5

30/5 = 

6g

500

Is food allowed to be eaten during class or during a lab?

No!!