"Dissolution Phenomenon Between Liquids" Dissolution PPT Courseware 3

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Fourth Grade Science Volume 1, Textbook Edition	pptx	6 MB

"Dissolution Phenomenon Between Liquids" Dissolution PPT Courseware 3

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Upload Time: 2024-11-18

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"Dissolution Phenomenon Between Liquids" Dissolution PPT Courseware 3

Can shampoo dissolve in water?

Guess: Can shampoo dissolve in water?

Take a small spoonful of shampoo and slowly pour it into a glass of water.

Watch how the shampoo enters the water.

Do they float or sink in water?

How do they spread in water?

Stir gently first and observe what happens?

Stir thoroughly and continue to observe: Is the shampoo dissolved in the water?

Can vinegar, alcohol and cooking oil dissolve in water?

Put about 10-15 ml of water in each of the three test tubes.

Add 1-2 ml of vinegar, alcohol and cooking oil to the test tube respectively.

After shaking thoroughly, let it sit for a while.

Observe and describe the changes in these three substances in water.

Extension activity: add a small amount of detergent

Add a small amount of detergent to the cooking oil and water mixture.

Shake thoroughly and observe the phenomenon. Think about what this means?

in conclusion

What did you learn today?

Science Homework (October 15)

1. Review the sentences underlined in P27-28 of the textbook and record the knowledge points, and take dictation tomorrow.

2. Do the Provincial Editing Workbook P16-17.

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For more information about the "Dissolution Phenomena between Dissolving Liquids" PPT courseware, please click the Dissolution Ppt Dissolution Phenomena Between Liquids ppt tag.

"Dissolution Phenomenon Between Liquids" Dissolution PPT download:

"Dissolution Phenomenon Between Liquids" Dissolution PPT Download Part One Content: Can Glue Shampoo Dissolve in Water 1. Observe the dissolution of glue and shampoo in water Experimental purpose: By putting glue and shampoo into water respectively In water, compare and describe glue and...

"Dissolution Phenomenon Between Liquids" Dissolution PPT:

"Dissolution Phenomenon Between Liquids" Dissolution PPT Part 1: Can glue and shampoo dissolve in water? Certain solid substances dissolve in water and can form a uniform, transparent, and stable solution. Then, liquids can also dissolve in water like table salt and potassium permanganate.

"Dissolution Phenomenon Between Liquids" Dissolution PPT Courseware 2:

"Dissolution Phenomenon Between Liquids" Dissolution PPT Courseware 2 Solids such as salt and potassium permanganate dissolved in water. Form a uniform, transparent and stable solution. Can liquids also dissolve in water like table salt and potassium permanganate? Experimental requirements: (1) Pour out a spoonful of...

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Update Time: 2024-11-18

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"Dissolution Phenomenon Between Liquids" Dissolution PPT Courseware 3