Ch. 3 Geography of Africa Vocabulary Name _________________ 1.) basin – the land area that is drained by a river and its tributaries 2.) cataract – large waterfall 3.) city-state – large town that has its own government and controls the surrounding countryside 4.) desert climate – a climate that is hot and dry; it receives 10 inches or less of rain in a year and supports basically no vegetation 5.) desertification – the change of semi-desert land into desert land 6) drought – prolonged periods of little or no rainfall 7.) escarpments – steep cliffs 8.) Great Rift Valley – a giant valley located along a fault line (break in the Earth’s crust) in the eastern part of Africa; it runs from the Red Sea to the Zambezi River and is actually a series of mountains and valleys rich with fertile soil and lots of metals and minerals 9.) gold-salt trade – kingdoms in West Africa were rich in gold, but did not have salt which they needed; traded Arab merchants across the Sahara for the salt they needed 10.) hieroglyphics – ancient form of Egyptian writing that used pictures and symbols to represent words and sounds 11.) hydroelectric power – energy produced by moving water 12.) leaching – dissolving and washing away of the soil’s nutrients by constant heavy rain 13.) Mediterranean climate – subtropical area that has hot, dry summers and cool, moist winters; exists along the Northern African coast and the southwestern part of South Africa 14.) mosque – where Muslim people worship 15.) mummification – a method of preserving the body in ancient Egypt; it involved wrapping the body in cloth dipped in chemicals 16.) Nile River Valley – the longest river in the world located in Northeast Africa; it is the site of one of the earliest civilizations, the Egyptian civilization; river provides a fertile farming area in the middle of a desert 17.) pharaoh – ruler of ancient Egypt 18.) plateau – large area of high flat, or gently rolling land 19.) Sahara Desert – the largest desert in the world extends across Northern Africa from the Atlantic Ocean to the Red Sea 20.) savannah – flat grasslands area with occasional bushes or trees; common in tropical Africa 21.) semiarid climate – located in the tropics and subtropical regions of Africa – generally hot summers and mild to cold winters; have around 18 inches of rainfall with grasses and shrubs for vegetation 22.) silt – fine sand, clay and other material carried by running water and deposited as sediment 23.) Sub-Saharan Africa – the parts of Africa that are located south of the Sahara Desert 24.) tropics – area between the Tropic of Cancer and the Tropic of Capricorn