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16 terms

the southwest

lessons 1-3
STUDY
PLAY
canyon
a deep narrow valley with steep sides
mesa
a hill with a flat top
butte
they are like mesas but smaller
erosion
slow wearing away from the land by water wind or ice
desert
dry land where little rain falls
adapt
to change in order to survive in a (southwest) environment
drought
a period of little or no rain
petroleum
oil
texas, Oklahoma
=2 of our country's largest producers of oil
aquafer
underground layers of rock or sand that trap rain water
spring
place where underground water comes to the surface
aquaduct
canal or pipe that carries water to farms or cities
dry farming
a way to grow crops with only a small amount of rain water
crude oil
a not very useful oil. it must be taken to a refinery
refinery
where the crude oil is refined into different parts
petrochemicals
chemicals made of petroleum. (paint, ink in a pen, clothing, shoes)