"Where Has the Sugar Gone" Drinking Water PPT Courseware

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"Where Has the Sugar Gone" Drinking Water PPT Courseware

1. Do you know them?

2. How can you accurately distinguish between sugar and salt?

3. What will happen if you put sugar in water?

Experimental steps:

1. First pour half a cup of water into the beaker, then put a small amount of brown sugar (potassium permanganate) into the cup and observe the changes of the brown sugar in the water.

2. Stir with chopsticks and observe the changes of brown sugar in water.

3. Let it sit for a while and then observe the changes of brown sugar in water.

1. Characteristics of dissolution:

1. Whether it completely disappeared into the water.

2. Is there any precipitation after standing?

3. Whether it can be separated by filtration method.

2. What can you do to dissolve substances in water as quickly as possible?

3. How to make the dissolution competition fairer?

1. Comparative experiments must control variables and invariants, so that the experimental results will be more accurate.

2. Methods to speed up dissolution:

1. Stir

2. Heating

3. Grind

4. Use three methods at the same time

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For more information about the PPT courseware "Where Did the Sugar Go in the Drinking Water?", please click the "Where Did the Sugar Go in the Drinking Water ppt" ppt tag.

"Where Has the Sugar Gone" Drinking Water PPT Courseware 3:

"Where Has the Sugar Gone?" Drinking Water PPT Courseware 3 Teaching Materials (Status and Function) "Where Has the Sugar Gone" is the content of Lesson 13 of the "Drinking Water" unit in the first volume of the third-grade science textbook published by the Hubei Education Press. Through experiments, this lesson aims to guide students to know that water can dissolve some substances.

"Where Has the Sugar Gone" Drinking Water PPT Courseware 2:

"Where Has the Sugar Gone?" Drinking Water PPT Courseware 2 Once upon a time, there was a little donkey carrying a bag of sugar across the river. The river was very deep and the sugar was submerged. After it crossed the river, it felt much lighter. What is the reason for this? Guess: What happened to the sugar in the water? ..

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Update Time: 2024-09-30

This template belongs to science courseware E-education edition third grade science volume 1 industry PPT template

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