Unit 2: A First Look Inside

In this unit from the Geology: Structure of the Earth series, produced by Northumberland County Council, students discover more about the Earth's internal structure. In a series of tasks, students investigate the true shape of the Earth, gravity and how geologists use it, movements of the Earth and what happens inside mountains.

Skills gained from the previous unit are further developed, words added to the glossary and the activities include essay questions.

At the end of this unit, students rate their confidence in:

*Understanding the principles of gravitational attraction
*Understanding how and why gravity anomalies differ, and their uses
*Arranging information in order of probability
*Extracting the main points from a reference and summarising it
*Explaining the two hypotheses accounting for isostatic movement, and explaining its effects
*Planning and writing an essay, including diagrams, sections and sketch maps