"Globe and Map" PPT

Description

"Globe and Map" PPT

Part One: Discussion

1. What are longitude and latitude lines? What are the shapes of longitude and latitude lines on the globe?

2. Find the poles, equator, 0° longitude, and 180° longitude on the globe.

3. How to determine the division of longitude and latitude on the globe. (Eastern and western longitudes, southern and northern latitudes)

Globe and map PPT, part 2: give it a try

1. Fill in the longitude and latitude values ​​of A and C.

A: 80° east longitude and 10° south latitude;

C: 90° east longitude and 20° south latitude.

2. Which of the following points is located in both the Western and Southern Hemispheres ( )

A. 19° west longitude, 60° south latitude B. 0°, 26° north latitude

C. 25° west longitude, 30° north latitude D. 140° west longitude, 35° south latitude

3. The geographical significance of the prime meridian is ( )

A. The dividing line between the eastern and western hemispheres B. The dividing line between the eastern and western time zones

C. The starting line for dividing longitude D. The starting line for dividing latitude

Globe and map PPT, Part 3 content: Assignment:

1. Complete questions 1---6 in the homework book.

2. Complete the synchronous practice of questions 1---13.

3. Four people work together to make a small earth (the raw material can be table tennis or other spherical materials), which should be marked with longitude, latitude, longitude, latitude and other marks.

Globe and Map PPT, Part 4 Content: Classroom Exploration

Explore lines of longitude and longitude

(1) Comparing different longitudes, their lengths are the same

(2) Meridians connect the North and South Poles

(3) The surface of the earth is divided into 360°

(4) East longitude and west longitude are divided from the 0° longitude as the starting point.

(5) The Eastern Hemisphere and the Western Hemisphere are divided by a longitude circle composed of 20°W and 160°E.

Explore lines of latitude and latitude

(1) Comparing different latitudes, their lengths are different. The equator is the longest. The length of the latitudes gradually shortens from the equator to the poles, and reaches a point at the poles.

(2) Latitude lines are perpendicular to longitude lines

(3) The surface of the earth is divided into 180°

(4) Northern latitude and southern latitude are divided from the 0° latitude line (equator) as the starting point

(5) The northern and southern hemispheres are also divided by the 0° latitude (equator)

Keywords: Zhejiang Education Edition seventh grade science PPT courseware free download, globe and map PPT download, .PPT format;

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Update Time: 2024-09-30

This template belongs to science courseware Zhejiang Education Edition Seventh Grade Science Volume 1 industry PPT template

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