"Iron is Rusty" PPT download of changes in matter

Description

"Iron is Rusty" PPT download of changes in matter

Part One Content: Collaborative Exploration

(1) The phenomenon of iron rusting in daily life

What kind of change does iron rust cause?

(2) Observe rust

Vision: color, shine, voids

Touch: feel

Use a hammer to hit the iron piece and the rust separately. What is the difference between them?

Assemble a homemade circuit detector and check whether the iron piece or rust can conduct electricity?

Summary: Iron rusting is a chemical change, and rust is a new substance different from iron.

Experimental results: There is water vapor in the air, and air is dissolved in the water. Half of the iron nails placed in the water are affected by the combined action of air and water at the same time. Therefore, the rust of iron is the result of the combined action of water and air.

Iron is rusty PPT, part 2: expansion and extension

Rust can also be removed after iron rusts. There are two ways to remove rust: chemical method is to use dilute sulfuric acid or dilute hydrochloric acid to remove rust; physical method, if it is a household rust removal, you can use sandpaper, if it is a factory rust removal, you can use Removal of sandblasting cutting, angular grinding wheels, etc.

Chemists have proven that iron will not rust even if it is placed in absolutely waterless air for several years. However, water alone will not make iron rust. People have tested that if a piece of iron is placed in a boiled, sealed water bottle, the iron will not rust. Only when oxygen in the air dissolves in water will iron rust.

Class summary

Iron rust is a chemical change. The cause of iron rust is related to water and air. Rust is a new substance produced after iron rusts.

Iron is rusty PPT, Part 3: Classroom exercises

1. Fill in the blanks

1. Iron rusting is a kind of ( ).

2. Iron became ( ), a new substance different from iron.

3. The reason why iron rusts is related to ( ).

4. Through the tapping experiment, it was found that the difference between iron and rust is ( ).

2. Multiple choice questions

1. Can rust conduct electricity ( )

A.Can B.Can't

2. Is the rust shiny? ( )

A.Yes B.No

3.Is there a difference between iron and rust ( )

A.Yes B.No

Iron is rusty PPT, Part 4: Homework

Check the information to explain, what kind of substance is rust?

Keywords: Free download of science PPT courseware for the second volume of the sixth grade in the textbook edition, PPT download of rusty iron, PPT download of changes in matter, .PPT format;

For more information about the PPT courseware "Changes in Matter and Iron Rustes", please click on the "Changes in Matter ppt Iron Rustes" ppt tag.

"Iron is Rusty" PPT teaching courseware on changes in matter:

"Iron Rustes" PPT Teaching Courseware on Changes in Matter Part One: Observing Rust Comparison: Iron and Rust Based on the above research results, our conclusion is: 1. Iron and rust ________ the same substance. (yes, no) 2. Rusty iron is ____________..

"Iron is Rusty" Changes in Matter PPT:

"Iron Rustes" PPT on Changes in Matter Part One: Observing Rust Observe and compare iron sheets and rust. What are the differences between them? Iron turns into rust. Is this a chemical change? What evidence do we use to prove our point? By observing and comparing...

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Update Time: 2024-11-23

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

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