![]() Next, show the side-by-side images of Las Vegas, Nevada, in 1984 and in 2007 and minimize the caption. Point out that the black area to the east of the city is Lake Meade, a reservoir created by the damming of the Colorado River. What landforms do you see? (mountains, lakes).What does the land look like outside of the city? (rugged, mountainous, like a desert).What patterns do you see in the city? (Straight lines are streets the layout is a grid, with some diagonal roads.).Invite volunteers to point to different areas on the image as you use the prompts below. Project the Growth in the Desert image of Las Vegas, Nevada, in 2007 and minimize the caption. Tell students that they will be looking at changes over time in different places on Earth using satellite imagery. Examine the changes in Las Vegas, Nevada, and its surroundings. Ask: What technologies are used to capture images of Earth from above? Write students’ ideas on the board these may include planes, helicopters, kites or balloons with cameras, and satellites.Ģ. Project the satellite image of New York City and the aerial image of LaCrosse, Wisconsin. Have a whole-class discussion about how it’s possible to capture images of Earth from above. ![]() Discuss different ways to capture images of Earth from above.
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