Comprehension and additional task exercises pages 102 and 103 from Next Page Science KS3 Complete. Accompanying PowerPoint and word searches available for free from the website.
This exercise covers:
• The structure of the earth: crust, mantle, outer liquid core and inner solid core with a pictorial aid
• The difference is density, temperature and size of the four layers
• Earthquakes and use of seismometers
• Earth began as one supercontinent (Pangaea)
• Plate tectonics as the theory for: continents, mountain formations and earthquakes
• Evidence for tectonic theory
• A labelling exercise and pie chart to plot of earth’s elemental composition
• Amazing WHAT? facts
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