Key Terms 2 3.0 / 5 based on 1 rating ? GeographyGCSEAll boards Created by: Caitlyn GraystonCreated on: 24-03-13 15:32 Weather Is short term changes in the atmosphere - temperature, wind, cloud cover 1 of 15 Climate is the average of the waether conditions over 30 years 2 of 15 Climatologist A scientist who is an expert in climate and climate change 3 of 15 Glacials Cold periods 4 of 15 Interglacials Warm periods 5 of 15 Stratosphere The upper layer of the atmosphere 6 of 15 Milankovitch Cycles The three changes which alter the amount of sunlight reaching the earth 7 of 15 Sunspots Black areas on the surface of the sun 8 of 15 Little Ice Age Started in 1350AD when the becmae colder and winters longer 9 of 15 Food Chains A chain of names linked by arrows showing what species feed on. It always starts with a plant 10 of 15 Megafauna Big animals weighing over 40kg eg mammoth 11 of 15 Extinction When a species dies out 12 of 15 Greenhouse Effect The way gases in the atmosphere trap heat from the sun 13 of 15 Thermal Expansion As glaciers and ice sheets melt the sea levels rise and it warms up 14 of 15 Desertification The process of an area turning to desert 15 of 15
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