Hot desert recall Learn these facts about desert

Hot desert re-call Learn these facts about desert ecosystems Watch the planet lacey video Test yourself Any you get wrong you need to go back and revise

A desert receives less that 250 mm of rainfall making it dry and arid all year. Deserts are found in dry continental interiors, away from coasts in a belt approximately 30 degrees Soth and 30 degrees North of the equator. There are coastal deserts too for e. g the Atacama in South America. The climate of a desert is a result of global atmospheric circulation. Air that has risen from the Equator descends forming a persistent belt of high pressure. High pressure explains the lack of clouds, rain and the very high daytime etemperatures. The lack of cloud cover explains why temperatures can plummet below freezing at night during the winter. Desert soils are very sandy and stony. Desert soils have very little organic matter due to the general lack of leafy vegetation. Learn the key facts and highlight Planet lacey https: //www. y outube. com/w atch? v=LMDj. Ei 3 Pb. Y Desert soils are dry so they soak up the water rapidly after rainfall. After it rains in the desert evaporation draws salt to the surface leaving a white powder on the ground. Desert soils are not very fertile. Your case study for opportunities and challenges is the western desert Your case study for desertification and management of desertification is the Sahel Read and highlight key facts Read this through at least 3 times

Step 2 Summarise the key points in your own words Step 3 Re-read the key facts. Cover & write down what you can remember. Repeat until you can remember! Key points

Learning quiz 1. Why does the desert soil take in rainfall quickly? 2. In Which latitudes can deserts be found? 3. What does arid mean? 4. What is the maximum temperature in deserts? 5. What is the location of the hot desert explained by? 6. Name a coastal desert? 7. Why is there a lack of rain, cloud and persistent high temperatures in the desert? 8. What happens to the temperature due to the lack of cloud cover? 9. Describe what desert soils are like? 10. Why do deserts have a white powder like substance left on the ground? 11. Case study for hot deserts opportunities and challenges? 12. Case study for desertification and management?

Learning quiz answers 1. Why does the desert soil take in rainfall quickly? Due to their dry stony nature. 2. In Which latitudes can deserts be found? 30 degrees North and South of the Equator 3. What does arid mean? Having little or no rain 4. What is the maximum temperature in deserts? 50 c 5. What is the location of the hot desert explained by? Global atmospheric circulation 6. Name a coastal desert? Atacama 7. Why is there a lack of rain, cloud and persistent high temperatures in the desert? Due to the air that has risen at the Equator, descends forming a belt of high pressure. 8. What happens to the temperature due to the lack of cloud cover? Plummets below freezing at night. 9. Describe what desert soils are like? Stony and sandy 10. Why do deserts have a white powder like substance left on the ground? Evaporation draws salts to the surface 11. Case study for hot deserts opportunities and challenges? Western desert 12. Case study for desertification and management? Sahel