Unit 1 and minerals review

Which layer of the Earth is liquid metal?

• Crust

• Mantle

• Outer core

• Inner core

What is the thickest layer of the Earth?

• Crust

• Mantle

• Outer core

• Inner core

Underwater mountain chain where sea-floor spreading occurs is called what?

• Islands arcs

• Ocean trenches

• Fault lines

• Mid-ocean ridges

The picture is an example of what kind of plate boundary?

• Transform boundary

• Divergent boundary

• Convergent boundary

• Subduction zone

The powder left behind when a mineral is scraped across a tile.

• Hardness

• Streak

• Luster

• Fracture

What property am I testing if I scratch the mineral across a glass plate?

• Streak

• Cleavage

• Hardness

• Luster

The way in which light reflects from a mineral's surface.

• Luster

• Cleavage

• Color

• Fluorescence

The tendency of a mineral to break into flat surfaces.

• Luster

• Fracture

• Hardness

• Cleavage

The tendency of a mineral to break into irregular pieces.

• Cleavage

• Fracture

• Hardness

• Streak

When molten rock is underneath Earth's surface it is called ____________.

• Tar

• Lava

• Magma

• Pumice