"Controlling the Speed ​​of Iron Rusting" PPT teaching courseware on changes in matter

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"Controlling the Speed ​​of Iron Rusting" PPT teaching courseware on changes in matter

Part One: Exploration: Is the rust of iron related to the air?

Experimental conclusion: Iron rusting is the result of the combined action of water and air.

What does the speed of iron rusting depend on?

——The speed of iron rusting is closely related to the amount of water.

In life, how do people prevent iron from rusting and slow down the speed of iron rusting? Think about the science behind it.

Controlling the speed of iron rusting PPT, Part 2: Common methods to prevent iron from rusting

1. Form an alloy to change the internal structure of iron.

2. Cover the surface of iron products with a protective layer.

(1) Apply paint, mineral oil or fired enamel, spray plastic, etc.

(2) Plate a layer of metal that is not prone to rust on the surface of steel using electroplating, hot plating or other methods.

(3) Use chemical methods to form a dense and stable oxide film on the surface of iron products.

3. Keep the surface of iron products clean and dry.

PPT on controlling the speed of iron rusting, part three: key points of this section

1. Iron rusting is the result of the combined action of water and air.

2. The speed of iron rusting is closely related to the amount of water.

Iron rusts very quickly in salt water.

3. Isolating iron from water and air is a good way to prevent iron from rusting.

Keywords: Free download of science PPT courseware for the second volume of the sixth grade in the textbook version, PPT download of controlling the speed of iron rust, PPT download of changes in matter, .PPT format;

For more information about the PPT courseware "Changes in Substances Control the Speed ​​of Iron Rusting", please click the Changes in Substances ppt Controls the Speed ​​of Iron Rusting ppt tag.

"Controlling the Speed ​​of Iron Rusting" PPT download of changes in matter:

"Controlling the Speed ​​of Iron Rusting" Changes in Matter PPT Download Part One Content: Exploring New Knowledge Scientific Forum In the section "Iron rusts", we hypothesize that iron rusting is related to water and air, and design comparative experiments to verify it. , in this lesson we will discuss the experimental results..

"Controlling the Speed ​​of Iron Rusting" Changes in Matter PPT:

"Controlling the Speed ​​of Iron Rusting" Material Changes PPT Part One: Scientific Discussion We studied the causes of iron rusting and conducted comparative experiments. Let us share the research results! Research question: Is iron rust related to air? Our hypothesis: Iron...

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Update Time: 2024-10-01

This template belongs to science courseware Science Edition for Sixth Grade Science Volume 2 industry PPT template

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