1. Year 8 Revision
Summer exam

2. COASTS
Do you know your definitions

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

4. Processes of erosion Corrosion Hydraulic action Processes of erosion
Abrasion
Attrition

5. Headlands and bays

6. Cliffs

7. Caves, arches, stacks and stumps

8. 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.

9. 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.

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

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

12. PEOPLE AND THE PLANET

13. PEOPLE AND THE PLANET

14. 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

15. 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

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

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

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

19. Layers of the TRF

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