Lesson 4
Effects of Weather on the Land
Skim Lesson 4 in your book. Read the headings and look at the photos and illustrations. Identify three things you want to learn more about as you read the lesson. Record your ideas in your Science Journal.
Ecoregions I found this on page
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Define ecoregion, and note two examples. .
Sample examples are shown.
ecoregion: a large area of land that has a distinct group of plants, animals, and other species
1. Great Plains I found this on page
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2. Arctic tundra
Express the relationship between the weather in given areas, climate, and ecoregions.
Weather occurs in a typical overall pattern in an area
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Sample answers are shown.
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long-term weather conditions
determined by climate
Contrast four of Texas’s larger ecoregions. West Texas
desert; receives very little rain
East Texas
includes several different ecoregions; receives more rain than other areas of Texas overall
8 Weather and Its Impacts
Ecoregion
Central Texas and Panhandle
prairie; thunderstorms, tornadoes, and drought are common
Coastal
narrow islands of sand, marshes, and rivers; occasional hurricanes
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
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Climate
Lesson 4 | Effects of Weather on the Land (continued)
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Relate two factors that determine which organisms can live in an area. 1. how much precipitation falls 2. where the water drains
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Contrast groundwater and surface water. Groundwater
Surface Water
precipitation that soaks into the cracks and pores beneath Earth’s surface
water that fills lakes and rivers
Define watershed, and identify three human activities that affect watersheds. watershed: an area of land where all runoff drains to the same body of water
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
1. changing the flow of rivers by building dams 2. removing water for irrigation 3. polluting water I found this on page
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Distinguish erosion from deposition. Erosion the process of moving weathered material, or sediment, from one location to another
Deposition Water slows and drops sediment.
Connect It Describe the ecoregion in which you live.
Accept all reasonable responses. Sample answer: I live in an ecoregion that is partly
grassland and partly forest. The weather varies dramatically by season, from cold
with moderate precipitation in the winter, to very hot and dry in the summer. The
plants and animals that live here are adapted to the weather extremes. Weather and Its Impacts
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