Year 8 Revision Summer exam

COASTS Do you know your definitions

Swash and backwash Backwash Swash Note: Backwash is always at right angles to the beach

Processes of erosion Corrosion Hydraulic action Processes of erosion Abrasion Attrition

Headlands and bays

Cliffs

Caves, arches, stacks and stumps

1 2 3 4 This is a cave (‘Stair Hole’). This is an arch (‘Durdle Door’). 3 4 This is a stack (Old Harry). These are stumps.

Longshore drift Backwash is always at right angles to the beach swash Direction of movement Backwash is always at right angles to the beach swash Backwash This movement of sediment along the coastline is called longshore drift.

How can we protect the coast? How do the ways on the next slide actually work?

The options... DO NOTHING! Beach nourishment Rip rap Sea wall Groynes Gabions DO NOTHING! Stone revetment Beach nourishment

PEOPLE AND THE PLANET

PEOPLE AND THE PLANET

Population Basics Birth rate is the number of births per 1000 Death rate is the number of deaths per 1000 Natural increase happens if there are more births than deaths If there are more births than deaths the population will grow. Most countries have a growing population

Will The population in a country grow IF Everyone gets better food War happens Deadly disease spreads There is famine and drought There are more doctors and hospitals Contraception is provided Women are educated

Death rate and birth rate How can govenrnments increase and decrease these?

What is global warming? What is the definition? What causes it?

What are these?/Which is the odd one out? pond desert biome tundra deciduous forest desert black ice-cap tropical green

Layers of the TRF

How much do you know about TRFs? Where? What is happening to them?