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
!["Composition of Soil" PPT courseware](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/eb4fbfcf-c9ee-4a09-be4b-440c9d2b3e48.webp)
Category | Format | Size |
---|---|---|
Zhejiang Education Edition Eighth Grade Science Volume 2 | pptx | 6 MB |
Description
"Composition of Soil" PPT courseware
Part One Contents: Living and Nonliving Materials in Soil
1. Life in the soil
think
In addition to various plants, are there other organisms in the soil?
2. Non-living substances in soil:
Activity report:
Phenomenon: The amount of water added to the soil is greater than the amount of water added to the iron block
Conclusion: Soil contains air
Explanation: The soil is loose and porous, allowing air to enter
discuss:
1. In the experiment, why do the volumes of soil and iron have to be the same? The shape or volume of the two large beakers used to hold soil and iron must be the same. What is the purpose of this?
2. Why are the amounts of water added to the same volume of iron and soil different?
3. Given a container, an appropriate amount of water, and a large enough measuring cylinder, how do you measure the approximate volume fraction of air in the soil to the volume of the soil?
Soil composition PPT, part 2 content: practice
1. Soil organisms refer to ______ _____ and _______ living in the soil. Most of ______ are tiny and can only be observed with the help of ______ and a microscope.
2. In the experiment of measuring the air volume fraction in soil, the experimental equipment and items used include ____, _____, _____, dropper, and soil.
3. If in the experiment of question 2, after injecting water into the soil iron block and reading from above, the measured volume fraction of air in the soil ( )
A. Too big B. Too small
C. Neither too large nor too small D. Unsure
4. Which of the following groups of organisms are active in soil ( )
(A) Voles and bats (B) Earthworms and beetles
(C) Dragonfly and starfish (D) Paramecium and E. coli
5. What do you think the environment earthworms generally live in?
Moist, loose, humus-rich soil
6. Compare the soil in different environments such as fields, forests, and campuses. Where should the soil contain more organisms? Why?
There are more organisms in soil with dense plants. The reason is that the more humus in the soil, the more fertile the soil and the more vibrant the organisms.
Keywords: Zhejiang Education Edition eighth grade science PPT courseware for the second volume free download, soil composition PPT download, .PPT format;
For more information about the "Composition of Soil" PPT courseware, please click the "Composition of Soil" ppt tab.
"Composition of Soil" PPT:
"Composition of Soil" PPT Part One: Soil Biology Activities 1. Select a soil sample 50cm long, 50cm wide and 30cm thick in the soil where flowers, agricultural and forestry crops grow. 2. Use a small shovel to slowly dig out the soil in the sample and observe carefully..
File Info
Update Time: 2024-09-06
This template belongs to science courseware Zhejiang Education Edition Eighth Grade Science Volume 2 industry PPT template
"Composition of Soil" 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 "Composition of Soil" 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
"Composition of Soil" 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
!["Composition of Soil" PPT courseware](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/e3fb3b5e-0092-48fc-bcc0-43e1144c6840.webp)