Mark your essay using the criteria below

Level 1 1-5 Description only of a basic nature of type of movement. No explanation and will probably refer to only 1 or 2 types of movement

Level 2 6-10 Expect explanation of either how or why, why could be the explanation of the how! Will not cover all of the above but will focus on 2 or 3 types of movement.

Level 3 11-15 Explanation of both how and why here, with at least 3 types of movement covered. For top of the level expect the distinction between cold and warm based glaciers to be made.

Explain how and why Glaciers move (15 marks)Explain involves a basic description plus reasonsHow and why both need addressingExpect reference to cold and warm based glaciers and comparisons between the 2.Why – Mass, slope, mass balance, water at the base (warm based only), gravityHow – a) cold based – internal deformation (ice crystal movement)

- Laminar flow (in layers) - Creep or plastic deformation

b) Warm based – the above plus basal sliding by regelation (involves melting) or creep (plastic deformation)Could reference extending and compressing flow.

Objectives To understand how food supply can be

considered to be GeographyTo gain an insight into the issues behind this unit

Food Supply Issues

The syllabusGo through the syllabus and highlight all of

the ideas you either:Know something aboutAre clueless about!

Short presentationsLook at the resources on various food

issues on my website.Take one of the resources each and answer

the questions at the bottom of the page.You will have to present these ideas to the

rest of the group.

Why are Food Supply Issues Geography?

HomeworkRead the other articles and images.First 2 reading sheets