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 1
E-education edition fifth grade science volume 2
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
!["Air and Oxygen" PPT courseware](https://font2020.oss-cn-beijing.aliyuncs.com/ppt1/e2e3db4063c410281607d91e29eddbcd.jpg)
Category | Format | Size |
---|---|---|
Zhejiang Education Edition Eighth Grade Science Volume 2 | pptx | 6 MB |
Description
"Air and Oxygen" PPT courseware
Part 1: Composition of air
1. Prove that the air contains carbon dioxide: -----Air can make clear lime water turbid.
2. Proof that there is water vapor in the air: -----When ice is placed in a cup, water droplets appear on the wall of the cup.
-----Anhydrous copper sulfate turns blue when placed in the air.
3. Prove that the air contains oxygen:
-----Combustibles burn in the air.
think:
How to determine the volume fraction of oxygen in air?
Tips: 1. Oxygen in the air will support combustion;
2. If solid is formed after oxygen-assisted combustion, the air pressure in the bottle will decrease;
3. Use the conversion method to measure measurements that are difficult to measure directly.
Air and Oxygen PPT, Part 2: Key to the success of the experiment:
(1) The device cannot leak (check the air tightness)
(2) Add a small amount of water to the gas collecting bottle (to cool down and absorb harmful white smoke)
(3) Red phosphorus should be excessive (to fully react with oxygen)
(4) Wait until the device cools down before opening the water stop clamp.
(5) After igniting the red phosphorus, immediately put it into the bottle and tighten the stopper.
In the experiment, if the volume of water entering is less than 1/5 of the total volume of the gas collecting bottle, what are the possible reasons?
(1) The device is leaking;
(2) Insufficient amount of red phosphorus;
(3) Open the water stopper before cooling to room temperature...
Air and Oxygen PPT, Part 3: Classroom Exercises:
1. Calculated by volume, the most abundant gas in the air is ( )
A. Oxygen B. Nitrogen
C. Carbon dioxide D. Rare gases
2. The volume of oxygen in 100 liters of air is approximately ( )
A. 78 liters B. 78% C. 21 liters D. 21%
3. The volume ratio of oxygen to nitrogen in the air is approximately ( )
A, 4:1 B, 1:4 C, 1:5 D, 5:1
4. Do you have any other methods to measure the volume fraction of oxygen in the air?
Keywords: Zhejiang Education Edition eighth grade science PPT courseware for the second volume free download, air and oxygen PPT download, .PPT format;
For more information about the "Air and Oxygen" PPT courseware, please click on the Air and Oxygen PPT tab.
"Air and Oxygen" PPT download:
"Air and Oxygen" PPT Download Part One: Preparing Oxygen in the Laboratory 1. Steps to produce oxygen using hydrogen peroxide (hydrogen peroxide): 1. Check the air tightness of the device; 2. Add MnO2 to the flask; 3. Connect the device; 4. Add H2O2 to the separatory funnel; 5..
"Air and Oxygen" PPT:
"Air and Oxygen" PPT Part One: Properties of Oxygen 1. Observe the color and state of a bottle of oxygen. 2. Gently fan the mouth of the bottle with your hand to let a small amount of oxygen float into your nostrils and smell its smell. Oxygen is a ____color____odorous gas. Smell...
File Info
Update Time: 2024-09-08
This template belongs to science courseware Zhejiang Education Edition Eighth Grade Science Volume 2 industry PPT template
"Air and Oxygen" PPT courseware Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
Tips: If you open the template and feel that it is not suitable for all your needs, you can search for related content "Air and Oxygen" PPT courseware is enough.
How to use the Windows system template
Directly decompress the file and use it with office or wps
How to use the Mac system template
Directly decompress the file and use it Office or wps can be used
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view: Click to see
How to create a high-quality technological sense PPT? 4 ways to share the bottom of the box
Notice
Do not download in WeChat, Zhihu, QQ, built-in browsers, please use mobile browsers to download! If you are a mobile phone user, please download it on your computer!
1. The manuscript PPT is only for study and reference, please delete it 24 hours after downloading.
2. If the resource involves your legitimate rights and interests, delete it immediately.
3. Contact information: service@daogebangong.com
"Air and Oxygen" PPT courseware, due to usage restrictions, it is only for personal study and reference use. For commercial use, please go to the relevant official website for authorization.
(Personal non-commercial use refers to the use of this font to complete the display of personal works, including but not limited to the design of personal papers, resumes, etc.)
Preview
![《空气与氧气》PPT课件(1)](https://font2020.oss-cn-beijing.aliyuncs.com/ppt1/e2e3db4063c410281607d91e29eddbcd.jpg)
![《空气与氧气》PPT课件(2)](https://font2020.oss-cn-beijing.aliyuncs.com/ppt1/4073e63f8f3a3621281fd36589744d0a.jpg)
![《空气与氧气》PPT课件(3)](https://font2020.oss-cn-beijing.aliyuncs.com/ppt1/ecfe874d952317eddf70fb83b5d125db.jpg)