Year 9 Science - The restless earth

A well-known way to measure the strength of an earthquake is called the .......... Scale

Directly above the point below the surface where an earthquake occurs is called the?

The two types of crust are?

Before the continents were formed the original 'supercontinent' was named..

What does a seismograph detect?

The upper part of the mantle is called the?

What is thicker?

A Syncline forms a?

Where plates move away each other at a boundary it is called?

The majority of active volcanoes lie along the Ring of ....?

An anticline forms a?

......... are formed when molten rock, or magma, bursts through a weakness in the earths crust?

Convection currents occur in the?

Where plates converge it is called a..

Where plates move towards each other at a boundary, and collide, it is called?

Our earth is shaped how it is because of the Theory of Plate .............?

When magma bursts through the crust it is called?

The blanket of gases that surrounds the earth is called the?