Category	Format	Size
Fourth-grade science volume 2 of the E-education edition	pptx	6 MB

"Understanding Soil" PPT courseware

Author: ︶￣Ｓs°╮

Upload Time: 2024-11-20

Copyright statement: This material is compiled and released by the user of Daoge Resources. The copyright belongs to the author. For commercial use, please contact the copyright owner. If there is any infringement, please contact the webmaster to remove the resource.

Download Points: 0.00

Free Download Upgrade VIP

Favorite Views: 4556 / Downloads: 811

Description

"Understanding Soil" PPT courseware

learning target

1. Do you know what types of soil there are?

2. Do you know what the composition of soil is?

3. Do you know how to protect the soil?

Experiment 1: Is there air in the soil?

Experiment 2: Put a piece of soil into a test tube and burn it. What will happen?

Experiment 3: Explained: The soil contains humus

What are the sources and functions of humus in soil?

Source: biological excreta and dead organisms.

Function: Provide food for small animals in the soil, provide nutrients for plants, and enhance soil fertility.

summary

Research results: The non-living substances contained in soil include

(1) Air

(2) Water

(3)Humus

(4) Clay, sand, and stones

Let’s talk about it: How should we humans protect the soil on which all living things depend?

Tips on protecting soil

Apply more bio-organic fertilizers

Reduce the use of chemical fertilizers and prevent soil compaction,

Reduce white pollution and use less plastic bags.

Keywords: Understanding soil teaching courseware, download the science PPT courseware for the second volume of the fourth grade in the E-education edition, download the science slide courseware for the fourth grade, download the PPT courseware for understanding the soil, .PPT format;

For more information about the "Understanding Soil" PPT courseware, please click the "Understanding Soil ppt" tab.

"Understanding Soil" PPT Courseware 3:

"Understanding Soil" PPT Courseware 3 Experimental Phenomenon Clay soil can be rolled into strips. Experimental summary: The soil has poor cohesiveness, which means that the voids are large, so it is relatively loose, water can flow out easily, and the aeration performance is good but the fertilizer retention performance is poor. The soil is very sticky, which means there are small voids and water retention..

"Understanding Soil" PPT Courseware 2:

"Understanding Soil" PPT Courseware 2 Soil can be seen everywhere in our daily life. Please talk about your understanding of soil based on your own life experience 1. How soil is formed 2. What are the common types of soil 3. Soil What's in it 4. What's in the soil...

File Info

Update Time: 2024-11-20

This template belongs to science courseware Fourth-grade science volume 2 of the E-education edition industry PPT template

"Understanding 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 "Understanding 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

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

"Understanding 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.)

Understanding soil ppt

Preview

Related Search:

欧洲图片免费的ppt模板哪里有简约的模板党建模板大黑字体红色模板免费关雎ppt 好书推荐 ppt打印一页4张铺满张衡传课件

菜单

"Understanding Soil" PPT courseware