"Iron is Rusty" Changes in Matter PPT Courseware 2

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"Iron is Rusty" Changes in Matter PPT Courseware 2

Have you ever seen rusty things in your life?

Where might they appear?

What happens when iron rusts?

Students, what do you think is the change when iron rusts?

To determine whether iron rusting is a physical change or a chemical change, we must first determine whether this change produces new substances. So, are iron and rust the same substance?

Research question: Is iron rust related to air?

Our hypothesis: Iron rusting is related to air.

Experimental materials: 3 test tubes, 3 iron nails, vegetable oil

experimental method:

1. Use test tubes of the same size, two of which are filled with water and vegetable oil respectively.

2. Place one iron nail in an empty test tube 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 dangers of metal rust

After metal rusts, the surface will be corroded and lose its original metallic luster. The originally flat surface will become rough and uneven, and in severe cases, holes and peeling will occur.

Because of the rust of steel products, the steel lost every year around the world accounts for 20-30% of the year's steel production.

In 2007, my country's steel production was approximately 500 million tons.

So how much steel will we lose per year?

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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" PPT download of changes in matter:

"Iron is Rusty" PPT Download of Changes in Matter Part One: Collaborative Exploration (1) Iron Rusting Phenomenon in Life What kind of change is iron rusting? (2) Observe the rust. Visual: color, luster, gaps. Tactile: feel. Use a hammer to hit the iron piece and...

"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: 2024-11-22

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

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