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

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

Experimental results:

Empty plates rust very slowly;

Water dishes rust very quickly and there is a lot of rust.

The vegetable oil pan is not rusty.

What conclusions can you draw from the record of the phenomenon?

Is iron rusting due to air or water, or is it the combined effect of air and water?

Before analyzing the reasons, let us look at another comparative experiment?

There is water vapor in the air and air dissolved in the water. Therefore, iron nails placed in the air and iron nails placed in the water are both affected by the combined effects of air and water at the same time.

Experimental results:

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

1. Fill in the blanks.

1. Iron and steel products easily turn into rust in the air. This is because iron products undergo complex _______ changes with _______ and ______.

2. Place two iron nails in the air and on a damp paper towel respectively. The nail placed on _____________ will rust faster.

2. Please cite what methods people have adopted in daily life to prevent iron products from rusting?

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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 teaching courseware on changes in matter:

"Controlling the Speed ​​of Iron Rusting" PPT teaching courseware on changes in matter Part one: Exploration: Is iron rusting related to 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 and the speed of water...

"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 Content: 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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