At 30 degreesnorth and southof equator theair sinksforming highpressure which highbrings dry fineweather Low pressure at equatorAt equator High pressurewarm air isforced to rise asit does, it cools,condenses andforms cloudsand you get rain
Activity• What are the characteristics of a desert habitat? [A desert is an area that is very dry and gets less than ten inches of rain per year.]• What kind of adaptations might an animal need to survive in the Sahara desert? [: Answers may vary but could include that an animal would need to be able to stay cool during the day and warm at night.]• If Antarctica is covered with ice and snow, why do you think it is considered a desert? Write a sentence or two to explain your answer. [It is a desert because it probably does not get very much precipitation each year. The snow and ice that are there have accumulated over time.]
Desert – an ecosystem found where there is verylittle rainfall.• Deserts are dry and hot. There are very few clouds.• Two kinds of deserts: – Hot deserts – Cold deserts• Hot deserts – Temperatures are very warm all year round – The summers are very hot• Cold deserts – Short, warm summers – Long, cold winters – Found in places near the north and south poles
Lets see how much you know!• Remember the pictures.• Think about what we talked about.• Think about what you learned.