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Topic: Sahara Desert

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Sahara

Sahara Desert (ecoregion)

Desert

Western Sahara

Desert climate

Deserts and xeric shrublands

Libyan Desert

Gobi Desert

Tenere

Desert

Gobi

West Saharan montane xeric woodlands

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	the Living Africa: the land - Sahara Desert - intro
		From north to south the Sahara is between 800 and 1,200 miles and is at least 3,000 miles (4,800 km) from east to west.
		Due to the massive size of the Sahara, Africa is split into two regions: that which lies above or forms part of the Sahara and the rest of Africa south of the Sahara.
		On the west, the Sahara is bordered by the Atlantic Ocean and on the east by the Red Sea, and to the north are the Atlas Mountains and Mediterranean Sea.
	library.thinkquest.org /16645/the_land/sahara_desert.shtml (112 words)

	Sahara Desert Map \| Sahara Desert Plant \| Sahara Desert Fact \| Sahara Desert Animal \| Sahara East \| Sahara Sands \| ...
		The desert is not totally barren, and except where there are shifting dunes of sand, some forms of life will survive.
		In ancient times, the Sinai was a wild and inhospitable desert area that formed a formidable barrier between Egypt and her Middle Eastern neighbors.
		In the north, the Sinai is a flat and sandy desert area.
	www.egyptattraction.com /Sahara.html (979 words)

	Sahara
		Sahara, with a size of 8.6 million km², is the world's largest desert, covering large parts of North Africa.
		Sahara is bordered in the north by the Atlas Mountains and the Mediterranean Sea and in the west by the Atlantic Ocean.
		In the south, the desert zone reaches 16º northern latitude; it is bordered by the Nile in the east, even if the desert continues to the east of the river until it reaches the Red Sea.
	i-cias.com /e.o/sahara.htm (766 words)

	Sahara (Site not responding. Last check: )
		The boundaries of the Sahara are the Atlantic Ocean on the west, the Atlas Mountains and the Mediterranean Sea on the north, the Red Sea and Egypt on the east, and the Sudan and the valley of the River Niger on the south.
		Sahara is divided into western Sahara, the central Ahaggar Mountains, the Tibesti massif, the Aïr Mountains (a region of desert mountains and high plateaus), Tenere desert and the Libyan desert (the most arid region).
		By 2500 BC the Sahara was as dry as it is today and it became a largely impenetrable barrier to humans, with only scattered settlements around the oases, but little trade or commerce through the desert.
	www.worldhistory.com /wiki/S/Sahara.htm (1213 words)

	Desert
		The desert biome is found in northern Africa, western North America, western Asia, the center of Australia, and on the west coast of South America.
		The plants in the desert tend to be widely scattered because of the lack of water.
		Some specific species of desert plants are the mesquite tree, which has roots that extend as deep as 263 feet, and the sotol cactus which is commonly found in Mexican deserts.
	lsb.syr.edu /projects/cyberzoo/desert.html (793 words)

	Types of Deserts
		Deserts are classified by their geographical location and dominant weather pattern as trade wind, midlatitude, rain shadow, coastal, monsoon, or polar deserts.
		The Rajasthan Desert of India and the Thar Desert of Pakistan are parts of a monsoon desert region west of the ranqe.
		Polar deserts are areas with annual precipitation less than 250 millimeters and a mean temperature during the warmest month of less than 10° C. Polar deserts on the Earth cover nearly 5 million square kilometers and are mostly bedrock or gravel plains.
	pubs.usgs.gov /gip/deserts/types (1181 words)

	THE SAHARA DESERT (Site not responding. Last check: )
		The Sahara Desert is the largest desert in the world, running from the east of Africa to the west of Africa.
		The boundaries of the Sahara are the Atlantic Ocean on the west, the Atlas Mountains and the Mediterranean Sea on the north, the Red Sea and Egypt on the east, and the Sudan and the valley of the Niger River on the south.
		Geographically distinct are the western Sahara, which is sometimes called the Sahara proper; the central Ahaggar Mountains and the Tibesti Massif, a plateau region; and the Libyan Desert in the east.
	www.flex.com.au /~vincent.attu/tukisahara.html (666 words)

	The Desert Biome
		Deserts cover about one fifth of the Earth’s surface and occur where rainfall is less than 50 cm/year.
		Although most deserts, such as the Sahara of North Africa and the deserts of the southwestern U.S., Mexico, and Australia, occur at low latitudes, another kind of desert, cold deserts, occur in the basin and range area of Utah and Nevada and in parts of western Asia.
		Desert surfaces receive a little more than twice the solar radiation received by humid regions and lose almost twice as much heat at night.
	www.ucmp.berkeley.edu /glossary/gloss5/biome/deserts.html (1499 words)

	Sahara Dream Tour, Sahara Desert 4x4, Tours in Sahara Desert
		Morning departure crossing the High Atlas 2260m high passage of Tizi n'Tichka arriving in Telouet for the visit of Kasbah Pacha Glaoui.
		Early morning departure to enjoy Sun rise on Sahara Desert, camel ride back to the hotel where the 4x4 are parked.
		Breakfast and departure towards the Palm Plantation of Tafilalet passing Rissani, the old Alaouite Sahara capital by the ancient Alaouite Sultans.
	www.ideal-tours-marrakech.com /sahara-dream.html (376 words)

	Geographic Guide Africa - Photos of Sahara Desert and Wildlife - Victoria Falls and Egypt (Site not responding. Last check: )
		Sahara is a desert plain in the northern part of Africa, covering over 9 million square kilometers, from the Atlantic to the Red Sea.
		Four fifth of the African territory is situated between the tropics of Capricorn and Cancer.
		The northern part of the continent is dominated by the Sahara desert, the largest desert in the world.
	www.geographicguide.com /africa.htm (1266 words)

	The Desert Environment - DesertUSA
		Modern desert regions are centered in the horse latitudes, typically straddling the Tropic of Cancer and the Tropic of Capricorn, between 15 and 30 degrees north and south of the equator.
		Three of the four major deserts of North America are contained within a geological region called the Basin and Range Province, lying between the Rocky Mountains to the east and the Sierra Nevadas to the west.
		While the distinctiveness of each desert is based on the types of plant life found there (determined both by evolutionary history and climates), the geological structures of these three deserts are rather similar.
	www.desertusa.com /desert.html (864 words)

	Oxfam's Cool Planet - On the Line - deserts - the Sahara desert
		The only true desert to be found along the 0° meridian line also happens to be world's largest.
		All the standard desert landscape types are present in the Sahara, from great fields of shifting sand dunes or ergs, to vast plains filled with rocks, known as reg.
		The Sahara is crossed by the Nile and Niger rivers, which together support most of the desert's human population.
	www.oxfam.org.uk /coolplanet/ontheline/explore/nature/deserts/sahara.htm (309 words)

	The Sahara desert (Site not responding. Last check: )
		The Sahara Desert supports a wide variety of both human and animal life that have adapted in unusual ways to this harsh landscape.
		The Sahara is one of the driest places on earth, and is home to a wild kingdom of animals and humans who have adapted to life in this seemingly bare and lifeless expanse.
		The desert is home to foxes, cats, snakes, rats, birds, toads, gazelles, hyena and a wide variety of insects, among others.
	www.allsands.com /Travel/places/thesaharadeser_wwp_gn.htm (765 words)

	Terrestrial Ecoregions -- Sahara desert (PA1327)
		The Sahara is the largest desert in the world and occupies approximately 10 percent of the African Continent.
		The surface of the desert ranges from large areas of sand dunes (erg Chech, Raoui), to stone plateaus (hamadas), gravel plains (reg), dry valleys (wadis), and salt flats (Cloudsey-Thompson 1984, Williams and Faure 1980).
		The borders for this ecoregion follow ‘desert dunes with perennial vegetation’ and ‘absolute desert,’ mapped by White (1983), and correspond approximately to the region with less than 25 mm of mean annual rainfall.
	www.worldwildlife.org /wildworld/profiles/terrestrial/pa/pa1327_full.html (1623 words)

	African Deserts and the Sahel in the Electronic Passport
		Sahara is derived from the Arabic word for desert.
		The Kalahari is a cold, rocky desert in southern Africa.
		The Sahel is the strip of land that separates savanna from the desert.
	www.mrdowling.com /611-deserts.html (247 words)

	World Deserts
		By contrast the great Sahara Desert covers almost 3.5 million square miles, the Australian deserts 1.3 million square miles, the Arabian deserts 1 million square miles, while the deserts of Turkestan have 750,000 square miles.
		Deserts tend to occur in two belts that circle the globe.
		The Sahara Desert is an example, as is the Turkastan and Gobi deserts of Asia.
	www.nps.gov /moja/mojadewd.htm (665 words)

	Desert
		Deserts get cold at night because there are no plants to hold the heat on the ground and because dry air cools quickly.
		The two largest deserts in Africa are the Sahara in northern Africa and the Kalahari in southern Africa.
		The Sahara is covered by mountains, rocky areas, gravel plains, salt flats and huge areas of dunes.
	www.ahsd25.k12.il.us /Curriculum%20Info/africa/desert.htm (342 words)

	Desert
		Deserts by bodies of water are usually caused by winds.
		The Desert plants are of great importance to the animals of the desert.
		If you are ever stuck in the desert without water, some cactuses, like the barrel or compass (a cactus that always leans to the south west) have water inside of them.
	ths.sps.lane.edu /biomes/desert4/desert4.html (911 words)

	SAHARA DESERT EXPEDITIONS
		The great Sahara Desert, an experience in awe-inspiring magnitude, where oceans of dunes undulate forever, sand and rock together create outlandish sculptures and mysterious Neolithic rock paintings evoke a seemingly impossible ancient way of life.
		And finally, it's a desert with a rich archaeological past where you'll find neolithic traces almost everywhere, lying on the sand surface: arrow heads, mortars and pestles, axe heads, grinding stones...all dating back many thousands of years.
		Recent volcanic eruptions give relief to this desert that some consider one of the most beautiful, as much for the diversity of its landscapes as for its human aspect.
	www.turtletours.com /maurit1.htm (765 words)

	Desert Field Trip
		Deserts generally receive less than 10 inches of precipitation a year, while semiarid regions receive on average between 10 and 20 inches a year.
		Deserts are moving all the time due to continental drift and growing mountain ranges.
		Deserts are found between 15 and 30 degrees north and south of the equator.
	www.field-trips.org /sci/desert/index.htm (207 words)

	Mr. Dowling's Deserts Page
		A desert is land that receives an average of less than ten inches of rain per year.
		The Sahara Desert of northern Africa is the largest desert in the world.
		When many people think of a desert they often think of endless miles of hot sand, but a desert does not have to be hot or sandy.
	www.mrdowling.com /607-deserts.html (334 words)

	Lesson Plan - The Sahara Desert
		Identify deserts in your area with which the children are familiar (e.g., the Great Salt Lake Desert, the Painted Desert, the Mojave Desert).
		Today, deserts are caused by wind patterns and climate, primarily located in regions along the Tropics of Cancer and Capricorn.
		The desert iguana is a common inhabitant found in the desert.
	www.teacherlink.usu.edu /tlresources/units/byrnes-africa/JULYOU/INDEX~1.HTM (833 words)

	Deserts (Site not responding. Last check: )
		Some deserts are endless "seas of sand" where the wind piles the sand into great big dunes.
		Other deserts may be flat, stony plains, or have rugged, rocky hills and mountains.
		Acacias are desert trees with long tap roots that reach down far below the surface to tap deep moisture, and spreading surface roots that are able to gather rain water before it evaporates.
	www.panda.org /kids/wildlife/mndesert.htm (344 words)

	Sahara Desert (Site not responding. Last check: )
		The Sahara Desert is now about 5,000 kilometers (3,000 miles) wide and up to 2,000 kilometers (1,200 miles) from head to foot, making it roughly as big as the United States.
		The Sahara Desert is still expanding along its southern border at an alarming rate.
		While most people envision the typical Sahara Desert landscape as rolling sand dunes (such as the landscape in the photo), in reality only 25% is sandy.
	www.clickiran.com /foreign/Sahara-Desert.htm (230 words)

	New Page 1 (Site not responding. Last check: )
		Deserts cover 1/5 of the world and can either be a cold desert or a hot desert.
		Deserts in the world are inhabited by 4% of the world's people.
		The Sahara is also home to the Sand cat, one of the smallest wildcats in existence.
	www.riverdale.k12.or.us /~dnebert/biome/francesb.htm (334 words)

	Oxfam's Cool Planet - On the Line - deserts
		Covering around a third of the earth's land surface, they are the harshest and most barren environments in the world - inhospitable and seemingly incapable of sustaining anything but the most rudimentary plant and animal life.
		Following this we consider the geography of deserts - where in the world they are to be found.
		Other sections explore the plant and animal life that can be found in the deserts along the meridian line, as well as some of the important conservation issues which we are facing in connection with this type of environment.
	www.oxfam.org.uk /coolplanet/ontheline/explore/nature/deserts/deserts.htm (181 words)

	Sahara
		The desert includes most of Western Sahara, Mauritania, Algeria, Niger, Libya, and Egypt; the southern portions of Morocco and Tunisia; and the northern portions of Senegal, Mali, Chad, and Sudan.
		Regions of sand dunes (erg) occupy only about 15% of the Sahara; “stone deserts,” consisting of plateaus of denuded rock (hammada) or areas of coarse gravel (reg), cover about 70% of the region; mountains, oases, and transition zones account for the remainder.
		From west to east the four principal land routes across the desert are from Colomb-Bechar to Dakar; from Colomb-Bechar to Gao and Timbuktu by way of Reganne; from Touggourt to Agadez and Kano by way of In-Salah; and from Tripoli to Ghat.
	www.infoplease.com /ce6/world/A0842962.html (517 words)

	Sahara Desert (Site not responding. Last check: )
		The Sahara is one of the hottest places on earth.
		There are volcanic mountains in the Sahara in the country of Chad.
		The rain in the Sahara is less than 10 inches a year.
	www.tooter4kids.com /Desert/sahara_desert.htm (311 words)

	Threats to the survival of plants native to the Sahara Desert
		Threats to the survival of plants native to the Sahara Desert
		Wilkinson wrote in the Guardian newspaper: "Mauritiana was once a land of forests and grasslands used by nomads which fringed the Sahara Desert.
		Perennial plants exist in the Sahara and other deserts which stabilize the environment and give human food.
	www.eden-foundation.org /project/sahrplnt.html (641 words)

	Terrestrial Ecoregions -- Sahara desert (PA1327)
		The Sahara Desert is a vast expanse of searing heat and merciless winds that stretches from the Atlantic Ocean to the Red Sea.
		This ecoregion covers the central part of the desert, where the monotony of vast sand dunes is occasionally broken by areas of stone plateaus, gravel plains, dry valleys, salt flats, and high mountains with snowcapped peaks.
		Antelopes called addaxes display some of the best examples of adaptations to desert life: large, flat hooves that enable them to walk over the sand without sinking, high tolerance for dehydration and extreme temperatures, and an ability to find shelter in depressions that they dig in the sand.
	www.nationalgeographic.com /wildworld/profiles/terrestrial/pa/pa1327.html (554 words)

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