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

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

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

Part One: Designing and Building Our Homes

Using what we learned in this unit, build a terrain with mountains and plains on a large plate, then choose a spot in the terrain to build a house. If a heavy rain is coming, can our homes withstand the storm without being damaged?

Issues to consider

What kind of terrain is built?

There are mountains and plains.

The proportion and distribution of mountains and plains. Are there more mountains or plains?

Which location on the big plate is the mountain and which location is the plain?

What kind of mountains and what kind of plains should be built?

Besides mountains and plains, what else should be on our terrain?

What materials are used?

What type of soil is used to build mountains and plains?

What materials do you want to use besides soil?

What materials are used to build a house?

Share your group’s design drawings with students from other groups.

Describe why the terrain is built the way it is;

Explain why the location of your home was chosen as you did;

Explain the rationale for choosing the materials needed to construct the terrain and house.

What will happen to our homes after the predicted heavy rain?

Reduce land erosion PPT, part 2: What impact does heavy rain have on our homes?

Fill a sprinkler with water to simulate a rainstorm and see if your home can withstand the rainstorm.

In an experiment, what conditions should remain the same for each group and why?

The amount and intensity of rainfall

Communicate and discuss our experimental results.

Has our home withstood the torrential rain? Where did the water go? Are our homes and terrain affected? Find evidence from experimental results.

Observation: Is the “runoff” turbid? What does this mean?

Compare the experimental results with our predictions. Are the results the same as the predictions? What didn't we think of?

What do our experimental results indicate?

If we redesigned and built our own homes, what improvements would we make to the terrain? Do we still build our houses where we originally chose them? Why? Where will we build the house?

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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.

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