8    Weather and Its Impacts   

Lesson 4 Effects of Weather on the Land C

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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.

Define ecoregion, and note two examples.

ecoregion:

1. 2. 

Express the relationship between the weather in given areas, climate, and ecoregions.

Weather Climate Ecoregion

Contrast four of Texas’s larger ecoregions.

West Texas Central Texas and Panhandle

East Texas Coastal

EcoregionsI found this on page .

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I found this on page .

XXX

Sample examples are shown.

a large area of land that has a distinct group of

plants, animals, and other species

Great Plains Arctic tundra

XXX

occurs in a typical overall pattern in an area

long-term weather conditions

determined by climate

XXX

Sample answers are shown. desert; receives very little

rainprairie; thunderstorms, tornadoes, and drought are common

includes several different ecoregions; receives more rain than other areas of Texas overall

narrow islands of sand, marshes, and rivers; occasional hurricanes

Weather and Its Impacts 9

Lesson 4 | Effects of Weather on the Land (continued)C

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�Connect It  Describe the ecoregion in which you live.

I found this on page . Relate two factors that determine which organisms can live inan area.

1.

2.

Contrastgroundwater and surface water.

Groundwater SurfaceWater

Definewatershed, and identify three human activities that affect watersheds.

watershed: 

1.

2.

3.

Distinguisherosion from deposition.

Erosion Deposition

I found this on page .

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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.

XXX

how much precipitation falls

where the water drains

XXX

precipitation that soaks into the cracks and pores beneath Earth’s surface

water that fills lakes and rivers

XXX

an area of land where all runoff drains to the

same body of water

changing the flow of rivers by building dams

removing water for irrigation

polluting water

XXX

the process of moving weathered material, or sediment, from one location to another

Water slows and drops sediment.