The+measurement+of+earthquake+magnitude

__Learning objective:__
To be able to recognise and know the difference between the Mercalli and Richter scales, and the characteristics of the epicentre and focus of earthquakes.

**__Key terms:__**

Mercalli scale, richter scale, earthquake, focus, epicentre

__**Tasks and activities**__
Students must know the meanings of the key terms (using earthquakes ppt). The students could complete a scatter graph to show the relationship between earthquake magnitude and death toll and undertake some predictions, draw conclusions on relationships.

__**Resources:**__

 

Guess the mercalli scale..... Is there a realtionship between death toll and magnitude? Plot the scattergraph describe and explain the pattern....

 

__**Asssessment: **__

Ensure students know the meanings of the words Graphs must be drawn correctly and full and detailed descriptions and explanations must be drawn.