Zhejiang Education Edition Ninth Grade Science Volume 2

Zhejiang Education Edition Ninth Grade Science Volume 2

Collect:0 Like:0

Collect 0 Like 0

Authoritative    PPT Summary

"Human Understanding of the Universe" PPT

Part One: Geocentric Theory and Heliocentric Theory

Do you know how the universe was born? Will the universe finally come to an end? Since ancient times, what has been mankind’s understanding of the universe?

From geocentric theory to heliocentric theory

During the Warring States Period, Gaitian said.

Pythagoras of ancient Greece believed that celestial bodies were spherical

It is consistent with the Christian view and is strongly supported by the Holy See. It is a written tool to restrict people's thoughts and also hinders the development of astronomy.

In the 2nd century AD, the Greek scientist Ptolemy proposed the "geocentric theory"

PPT on human understanding of the universe, part 2: modern cosmology theory

Research by American astronomer Hubble:

Hubble discovered that the greater the distance between galaxies, the greater the corresponding movement speed.

Imagine what would happen to these galaxies if time went back? What will it look like in the end?

Eventually it will shrink into a ball or even a point.

big bang theory

About 13.7 billion years ago, the universe was a "primordial fireball." At that time, the universe was extremely small, extremely hot, and extremely dense. The universe was born in the explosion of this large fireball, and expanded rapidly, continuing to this day.

PPT on human understanding of the universe, part 3: Class summary

1. Human understanding of the universe:

Representatives of geocentrism and heliocentrism

2. Modern cosmology:

The theory of the Big Bang (evidence: support from the movement of galaxies)

Keywords: Free download of science PPT courseware for the second volume of the ninth grade of Zhejiang Education Edition, PPT download of human understanding of the universe, .PPT format;

For more information about the "Human Understanding of the Universe" PPT courseware, please click on the "Human Understanding of the Universe" ppt tag.

"Human Understanding of the Universe" PPT courseware:

"Human Understanding of the Universe" PPT courseware Part 1: Classroom exercises 1. Ancient humans' understanding of the universe took a long time, and each nation had its own understanding and imagination of the universe. 2. From geocentric theory to heliocentric theory (1) In the 2nd century AD, Greek science...

︶ ̄Ss°╮

Works 91564 Articles 5168
Upgrade VIP Free Download
Download Points: 0.00

Daoge Coin

Note: 1 Daoge Coin = 1 RMB = 10 points

Zhejiang Education Edition Ninth Grade Science Volume 2 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!

文件名 如何下载使用 下载次数 Download Points 下载地址
Zhejiang Education Editi... 14250次 0.00 Free Download

Tips: If you open the template and feel that it is not suitable for all your needs, you can search for related content Zhejiang Education Edition Ninth Grade Science Volume 2 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

Zhejiang Education Edition Ninth Grade Science Volume 2, 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

Zhejiang Education Edition Ninth Grade Science Volume 2 浙教版九年级科学下册(1)浙教版九年级科学下册(2)

Related reading

For more detailed PPT-related tutorials and font tutorials, you can view:Please click to see

Read article >

Collect 0
Like 0
Related popular resources
Read related articles