Plates that move away each other is a type of what boundary?

The upper part of the mantle, the asthenosphere, its movement is what we call?

The newest rocks are found in the ocean floor in the ____________.

Of the three earthquake waves which on travels the slowest?

When the earth moves suddenly below the surface, this is called...

The scale that is commonly used to measure the magnitude of Earthquakes is called the Smyslov Scale.

When magma comes up to the surface and lava builds up, this opening is called a...

The cinder cone volcanoes are made mostly of tephra material.

The type of volcano that has gentle slopes and mild eruptions is the...

When rocks are exposed to large heat and pressure they will form which type of rock?

The cooling of magma will create this type of rock.

Rocks wit fossils or other small pebbles are most likely found in which type of rock?