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Lesson 3 Reading Guide - KC

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Earth s Surface What are Earth s major landforms and how do they compare? What are the major landform regions of the United States? Lesson 3 Reading Guide - KC – PowerPoint PPT presentation

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Title: Lesson 3 Reading Guide - KC


1
Lesson 3 Reading Guide - KC
Earths Surface
  • What are Earths major landforms and how do they
    compare?
  • What are the major landform regions of the United
    States?

2
Lesson 3 Reading Guide - Vocab
Earths Surface
  • landform
  • plain
  • plateau
  • mountain

3
Lesson 3-1
Oceans and Continents
  • Oceans cover more than 70 percent of Earths
    surface.
  • Many of the features that appear on dry land
    also appear on the ocean floor.

4
Lesson 3-2
Landforms
  • Landforms are topographic features formed by
    processes that shape Earths surface.
  • Scientists use the term topography to describe
    the shape of a geographic area.
  • Many factors such as erosion or uplift of Earths
    surface can create and affect landforms.

5
Lesson 3-2
  • A landform is usually identified by its surface
    form and location.

6
Lesson 3-2
Landforms (cont.)
  • Scientists use the term elevation to describe the
    height above sea level of a particular feature.
  • Relief is a term that scientists use to describe
    differences in elevation.

7
Lesson 3-2
  • Areas with high relief have a relatively large
    difference between the lowest elevation and the
    highest elevation.

8
Lesson 3-2
Landforms (cont.)
  • Plains are landforms with low relief and low
    elevation.
  • Plains can form when sediments are deposited by
    water or wind.

9
Lesson 3-2
Landforms (cont.)
plains from Latin planus, means flat, level
10
Lesson 3-2
Landforms (cont.)
  • Plateaus are areas with low relief and high
    elevation.
  • Plateaus are much higher than the surrounding
    land and often have steep, rugged sides.
  • Plateaus can form when forces within Earth uplift
    rock layers or cause collisions between sections
    of Earths crust.

11
Lesson 3-2
Landforms (cont.)
  • Plateaus can also be formed by volcanic activity.
  • Mountains are landforms with high relief and high
    elevation.
  • Mountains can form from a buildup of lava on the
    ocean floor, or when forces inside Earth fold,
    push, or uplift huge blocks of rocks.

12
Lesson 3-2
United Stated Landforms
13
Lesson 3-2
Medioimages/Photodisc/Getty Images
14
Lesson 3-2
15
Lesson 3-2
Landforms (cont.)
Describe at least three major landform regions in
the United States.
16
Lesson 3 - VS
  • Landforms are topographic features formed by
    processes that shape Earths surface.
  • Major landforms include flat plains, high
    plateaus,and rugged mountains.

17
Lesson 3 - VS
  • Major landform regions in the United States
    include the Appalachian Mountains, the Great
    Plains, the Colorado Plateau, and the Rocky
    Mountains.

18
Lesson 3 LR1
Which term refers to landforms with low relief
and low elevation?
A. plains B. plateaus C. mountains D. oceans
19
Lesson 3 LR2
Which term is used to describe the height above
sea level of a landforms particular feature?
A. relief B. mountain C. elevation D. topography
20
Lesson 3 LR3
Which term do scientists use to describe
differences in elevation?
A. height B. plateau C. relief D. elevation
21
Lesson 3 - Now
Do you agree or disagree?
5. All ocean floors are flat. 6. Most of Earths
surface is covered by water.
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