Fifth Grade Science Volume 1, Textbook Edition
Science Edition for Sixth Grade Science Volume 2
Third Grade Science Volume 2, Textbook Edition
Science Edition for Sixth Grade Science Volume 1
Third Grade Science Volume 1, Textbook Edition
Fourth Grade Science Volume 2, Textbook Edition
Fourth Grade Science Volume 1, Textbook Edition
Qingdao Edition Fourth Grade Science Volume 2
Hunan Education Edition Fourth Grade Science Volume 1
E-education edition fifth grade science volume 2
E-education edition fifth grade science volume 1
Qingdao Edition Fifth Grade Science Volume 2
Fourth-grade science volume 2 of the E-education edition
Fifth Grade Science Volume 2, Textbook Edition
Zhejiang Education Edition Seventh Grade Science Volume 2
E-education edition third grade science volume 2
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Category | Format | Size |
---|---|---|
Fourth Grade Science Volume 1, Textbook Edition | pptx | 6 MB |
Description
"Water can dissolve some substances" dissolving PPT
Part 1: Table salt dissolved in water
Take a small spoonful of table salt, put it into a glass filled with water, and stir gently with a stirring stick.
How to describe the state of table salt in water?
The salt is missing in the water
Table salt dissolves easily in water
Replace the salt with sand and do the same experiment as above.
How to describe the state of sand in water?
Sand sinks to the bottom of the cup
Sand does not dissolve easily in water
Water can dissolve some substances PPT, part 2: Does flour dissolve in water?
Take a small spoonful of flour, put it into a glass filled with water, and stir gently with a stir stick. If we leave it alone for a while, what else can we observe?
How to describe the state of flour in water?
Did the flour dissolve in the water?
Can flour settle in water?
Water can dissolve some substances PPT, part three: filtration
To make further observations, we can use filtering.
Fold the filter paper in half twice, open it along one edge and put it into the funnel.
Keep the bottom of the funnel neck against the inside wall of the beaker. When filtering, the liquid should slowly flow into the funnel along the glass rod, and the liquid level in the funnel should be lower than the edge of the filter paper.
Keywords: Free download of Chinese PPT courseware for the first volume of the fourth grade of the textbook version, water can dissolve some substances PPT download, dissolution PPT download, .PPT format;
For more information about the "Dissolved Water Can Dissolve Some Substances" PPT courseware, please click the Dissolved ppt Water Can Dissolve Some Substances ppt label.
"Method of Separating Salt and Water" Dissolution PPT Download:
"Method of Separating Salt and Water" Dissolution PPT download Part 1: Will salt and water evaporate together? Experimental purpose: to verify whether salt and water evaporate together. Experimental materials: 1 cup of concentrated salt water, 1 cup of clean water. Experimental steps: (1) Dissolve the salt at the bottom of the cup. ..
"Method of Separating Salt and Water" Dissolve PPT:
"Methods to Separate Salt and Water" Dissolution PPT Part 1: Will salt and water evaporate together? Observe the concentrated salt water we collected in the experiment. There is still undissolved salt at the bottom of the cup. Use a pen to mark the level of concentrated salt water. Add water little by little..
"How many grams of salt can be dissolved in 100 ml of water" dissolving PPT:
"How many grams of salt can be dissolved in 100 ml of water" Dissolution PPT Part 1 Content: How many grams of salt can be dissolved in 100 ml of water 1. Experimental plan to study how many grams of salt can be dissolved in 100 ml of water Determine the question to be discussed: To study how much can be dissolved in a glass of water grams of table salt, must...
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Update Time: 2024-09-08
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