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

Description

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

Part One Content: Scientific Symposium

We have studied the reasons why iron rusts and conducted comparative experiments. Let us share the research results!

Research question: Is iron rust related to air?

Our hypothesis: Iron rusting is related to air.

Experimental materials: 3 plates, 3 nails, water, vegetable oil

experimental method:

1. Use plates of the same size, fill two of them with water and vegetable oil respectively.

2. Place one iron nail in an empty plate in contact with the air, another iron nail completely immersed in vegetable oil, and another iron nail half placed in water.

3. Observe and record once a day.

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

Controlling the speed of iron rusting PPT, Part 2: How fast iron rusts

Under what circumstances does iron tend to rust? Let’s design a comparative experiment.

Controlling the Speed ​​of Iron Rusting PPT, Part 3: How to Prevent and Slow Down Iron Rusting

The reaction between baking soda and white vinegar is very rapid, while iron rusts relatively slowly. However, the losses caused by the rust of iron products are huge every year. How can we prevent and slow down the rust of iron?

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

Wiping kitchen knives and iron pots dry immediately after use can prevent rust.

Covered with enamel

The inorganic glassy material is solidified on the metal through melting and firmly bonded to the metal.

spray paint

Spray paint on metal surfaces to isolate air and prevent rust.

Stainless steel

Stainless steel will not corrode, rust or wear. Stainless steel is also one of the strongest materials among metal materials used in construction.

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 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..

File Info

Update Time: 2024-10-19

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

Preview