"Changes of Baking Soda and White Vinegar" Changes of Substances PPT Courseware 3

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"Changes of Baking Soda and White Vinegar" Changes of Substances PPT Courseware 3

Characteristics of baking soda: small white crystals

Characteristics of white vinegar: colorless liquid with a sour smell

discuss:

A. How should we do this experiment? Please design your own solution.

B. How to mix and what is the quantity to mix?

In this experiment, the ratio of baking soda and white vinegar must be controlled well, otherwise it will cause a lot of waste. Then take a glass, pour three spoons of vinegar, and then carefully pour in a spoonful of baking soda. Cover it with a piece of glass and record the phenomenon in the box of P33.

What happens when baking soda and white vinegar are mixed

Bubbles bubbled, gas was produced, and the glass became cold.

What gas is produced when baking soda and white vinegar are mixed? Next we will do two experiments

1. Insert burning thin strips of wood into the cup.

2. Pour the gas in the glass onto the candle flame. (Be careful not to pour out the liquid in the glass)

Through the above experiment, what characteristics can we know about this gas?

Can extinguish a burning flame and is heavier than air.

do you know?

Although our experiments cannot prove what gas is produced, scientists have determined after extensive research that this gas is carbon dioxide, which is a component of air. Carbon dioxide does not support combustion and is heavier than air. The bubbles in soda drinks are carbon dioxide. The gas we exhale when we breathe also contains carbon dioxide, and carbon dioxide gas is also produced when burning candles.

Observe the liquid in the glass. Is the baking soda still there? Is the remaining liquid still white vinegar? What substance do you think is left behind? Please collect after class.

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For more information about the PPT courseware "Changes in Substances: Changes in Baking Soda and White Vinegar", please click on the Changes in Substances ppt: Changes in Baking Soda and White Vinegar ppt tag.

"Changes of Baking Soda and White Vinegar" PPT teaching courseware on changes in substances:

"Changes of Baking Soda and White Vinegar" PPT teaching courseware on changes in substances Part One: Observing Baking Soda and White Vinegar Have you ever observed white vinegar and baking soda? What are their characteristics? Observe the characteristics of baking soda and white vinegar and record them in the table below. Xiaosu...

"Changes of Baking Soda and White Vinegar" PPT download of changes in substances:

"Changes of Baking Soda and White Vinegar" Changes in Substances PPT Download Part One: New Lesson Learning Record Sheet of Characteristics of Baking Soda and White Vinegar Characteristics of Baking Soda Baking soda is a small white crystal, soluble in water. Characteristics of White Vinegar White vinegar is a colorless liquid made from...

"Changes in Baking Soda and White Vinegar" Changes in Substances PPT:

"Changes of Baking Soda and White Vinegar" Changes in Substances PPT Part One: Observing Baking Soda and White Vinegar Observe the characteristics of baking soda and white vinegar and record them in the table. Characteristics of baking soda: small white crystals soluble in water. Characteristics of white vinegar: colorless liquid with sour smell....

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Update Time: 2024-11-21

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

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