"Erosion of Land by Rainwater" Earth's Surface and Its Changes PPT

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"Erosion of Land by Rainwater" Earth's Surface and Its Changes PPT

Part One: How Rain Affects Land

Use soil mixed with a small amount of sand and stones to create a slope terrain in a rectangular plastic box, pat it tightly with a small shovel, and then build a vertical "cliff" on the edge of the soil.

Prepare another beverage bottle and poke some small holes in the cap to make a water sprayer. Fill the drink bottle with water and close the cap.

Put the box containing the "cliff" on the scrap newspaper.

Line the paper with plastic wrap and raise one end of the box.

Squeeze the sprinkler with your hand to let the water spray out. Pay attention as much as possible

Let the "rainwater" fall on the slope soil and observe when the "rainwater"

What happens when you land on the "terrain"?

Communicate findings from our experiments.

What happens to the land when it rains? Why is this happening?

What happens to the "rain" when it falls on the land?

Compare "runoff" and "rainwater" in a water container. What are the differences? Can we explain why?

What else have we discovered?

Rainwater erosion of land PPT, Part 2: Factors affecting erosion

In nature, the surface terrain is often not very flat, the degree of vegetation coverage varies from place to place, and the amount of rainfall in the sky also varies.

Will the size of the land slope, the presence of plant cover, and the amount of rainfall affect the degree of soil erosion? Let’s talk about our speculations and reasons.

Can we design experiments to conduct research?

Which influencing factor did our group choose to study?

Do we need a control group?

What conditions should be the same for the experimental group and the control group? What conditions need to change?

What kind of experimental equipment do we use? What does the experimental setup look like?

Keywords: Free download of Chinese PPT courseware for the first volume of the fifth grade of the textbook version, download of PPT on the erosion of land by rainwater, download of PPT on the surface of the earth and its changes, .PPT format;

For more information about the PPT courseware "Earth's Surface and Its Changes and Rainwater's Erosion of Land", please click on the Earth's Surface and Its Changes PPT Rainwater's Erosion of Land PPT tag.

"Erosion of Land by Rainwater" PPT download of the earth's surface and its changes:

"Erosion of Rain on Land" The Earth's Surface and Its Changes PPT Download Part One Content: Exploration Activity Experiment Name How Rain Affects the Land Experiment Guessing Rainwater Will Change the Terrain Experiment Method Simulate Rain and Observe the Effect of Rain on Land Experiment Materials Soil and water. .

"Erosion of Land by Rainwater" Earth's Surface and Its Changes PPT Courseware 3:

"The Erosion of Land by Rainwater" The Earth's Surface and Its Changes PPT Courseware 3 The Movement of the Earth The Generation of Rainwater. The circulation of water in nature. There are extensive connections between things in nature and they are in eternal motion. Dangers of rainwater. Learn to think about nature...

"Erosion of Land by Rainwater" Earth's Surface and Its Changes PPT Courseware 2:

"Erosion of Land by Rainwater" Earth's Surface and Its Changes PPT Courseware 2 Review 1. Soil is a mixture of sand, pebbles, clay, humus, water and air. 2. Soil particles can be classified according to their size. From large to small they are sand...

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Update Time: 2024-10-01

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

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