"Reducing Land Erosion" Earth's Surface and Its Changes PPT Courseware 5

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"Reducing Land Erosion" Earth's Surface and Its Changes PPT Courseware 5

Flowing water, wind, glaciers, waves and gravity all erode the land, as does rain.

Erosion causes soil loss in certain places and changes the topography. It also has a great impact on human production and life. To protect their homes, people look for ways to reduce erosion as much as possible.

If we were to design an experiment to observe a terrain we would need to consider:

What kind of terrain is built?

What materials are used?

Where to choose to build a house?

How to make the amount and intensity of rainfall equal?

The amount and intensity of rainfall should be the same, but the specific operation is difficult. We can find a way from the equipment: use the same watering can, fill it with the same amount of water, the watering can has the same number of holes, and the hole size is the same. This may be relatively fair.

(1) Has our home withstood the attack of heavy rain? Where did the water go? Are our homes and terrain affected?

(2) Use a water collector to catch the outflowing water. Is the runoff turbid? What does this mean?

(3) What is not considered well?

(4) How to improve?

What forces do we already know about changing the topography of the Earth's surface?

Flowing water, wind, waves, glaciers, earthquakes, volcanoes, rain.

What kind of disasters will the various forces of the earth, including humans themselves, cause to us when they change the topography of the earth's surface?

Landslides, debris flows, crustal changes, terrain changes, soil erosion.

At present, people are also aware of the serious consequences and have made great efforts to prevent such disasters from happening. What do students know?

Plant trees, build embankments, and dredge rivers.

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For more information about the PPT courseware "The Earth's Surface and Its Changes to Reduce Land Erosion", please click the Earth's Surface and Its Changes ppt to Reduce Land Erosion ppt tag.

"Reducing Land Erosion" Earth's surface and its changes PPT download:

"Reducing Erosion of Land" The Earth's Surface and Its Changes PPT Download Part One Content: The new lesson explains that running water, wind, glaciers, waves and gravity will all erode the land. The reduction and loss of land is a serious problem currently faced by mankind, and it is human life...

"Reducing Land Erosion" Earth's surface and its changes PPT:

"Reducing Land Erosion" The Earth's Surface and Its Changes PPT Part One: Designing and Building Our Homes Using the knowledge we have learned in this unit, build a terrain with mountains and plains on a large plate, and then select the terrain A place in...

"Reducing Land Erosion" Earth's Surface and Its Changes PPT Courseware 6:

"Reducing Erosion of Land" Earth's Surface and Its Changes PPT Courseware 6 Review and Consolidation 1. On the upper reaches of the river, we can see _______, there are a lot of _______ accumulated on the middle reaches of the river bed, and on the downstream river bed It's full of_______. 2. Nature..

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Update Time: 2024-10-02

This template belongs to science courseware Fifth Grade Science Volume 1, Textbook Edition industry PPT template

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