"Changes of Sea and Land" Land and Ocean PPT Courseware 7

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"Changes of Sea and Land" Land and Ocean PPT Courseware 7

In reality, people have found many such examples, let’s discuss them!

What happened to the marine fossils in the Himalayas?

On the seabed of the East China Sea in my country, people have discovered the remains of ancient rivers. Why?

What is the significance of the Dutch sea-reinforcement dam?

Question: Is it just a coincidence?

Could the continent be drifting?

continental drift hypothesis

looking for evidence

The theory of continental drift holds that 200 million years ago, all the continents on the earth were connected to each other and surrounded by a vast ocean. Later, the original continent split into several continents, which slowly drifted and separated, gradually forming today's distribution of seven continents and four oceans.

continental drift

Movement of Plates: Understand the six major plates and their movements.

Comparing the plate distribution map, is there any intrinsic relationship between the distribution of the world's volcanoes and seismic zones and the movement of the plates?

in conclusion

1. The earth's surface, which is made of rock, is not one piece but is made up of plates.

2. The world is roughly divided into six major plates, and each major plate is in constant motion.

3. The interior of the plate is relatively stable, and the crust is relatively active in the interface between plates. Volcanoes and earthquakes in the world are also concentrated in plate boundary areas.

Apply what you learn

The Himalayas are formed by the relative movement of the _______ plate and the _______ plate, collision and extrusion of each other. As the plates continue to collide, Mount Everest will continue to rise.

The Mediterranean Sea continues to shrink due to the relative motion of the ______ plate and the ______ plate, and the collision and compression of each other, and will eventually disappear.

The Red Sea is formed by the rupture of the ______ plate and the ______ plate, which will eventually form a new ocean.

The 2011.3.11 Japan earthquake was the result of the collision and extrusion of the ________ plate and the ________ plate.

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For more information about the PPT courseware "Changes of Land and Sea" PPT courseware, please click on the "Changes of Sea and Land ppt Land and Ocean ppt" tab.

"Changes of Sea and Land" PPT download:

"Changes of Sea and Land" PPT download Part 1: Content objectives of this section: Give examples to illustrate that the land and sea on the earth's surface are in constant movement and change. Know the theory of continental drift and be able to use this theory to solve some problems. Changes in the sea. Changes in the sea, which can be referred to as...

"Changes of Sea and Land" PPT courseware:

"Changes of Sea and Land" PPT Courseware Part One: Teaching Objectives 1. Use examples to illustrate the changes of sea and land, and establish the scientific viewpoint of dialectical materialism that the sea and land are constantly moving and changing. 2. Understand the basic concepts of continental drift and plate tectonics, and be able to explain the world's main...

"Changes of Sea and Land" PPT:

"Changes of Sea and Land" PPT Part One Content: Course Questions Ask the question: What was the land like hundreds of millions of years ago? Establishing a hypothesis: Continental drift theory 200-300 million years ago, there was only one continent on the earth. Later, this supercontinent split into several continents, and...

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Update Time: 2024-10-03

This template belongs to Geography courseware People's Education Edition Geography for Grade 7 Volume 1 industry PPT template

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