"Solar System" Universe PPT Courseware 2

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"Solar System" Universe PPT Courseware 2

Geocentric

Every day, we can see the sun rising in the east and setting in the west. A long time ago, when the ancients saw this phenomenon, they thought that the sun was moving in a circle around the earth. The Egyptian astronomer Ptolemy believed that the earth was the center of the universe and that all other celestial bodies revolved around the earth. This was the "geocentric theory." This doctrine has persisted in the West for more than a thousand years.

heliocentric theory

Copernicus: Polish astronomer, founder of the heliocentric theory

Bruno: Promote Copernicus’ heliocentric theory

Kepler: German astronomer who explored the universe with mathematical harmony and made great contributions to astronomy

Galileo: Invented the astronomical telescope and discovered new astronomical phenomena that supported the "heliocentric theory".

Newton: Created a reflecting telescope and discovered gravity.

The names of these scientists who contributed to the development of the "heliocentric theory" will last forever. I hope that students will study hard and make contributions to mankind in the future, and your names will be remembered forever.

The solar system is composed of the sun and a group of celestial bodies orbiting it. If the solar system is compared to a big family, the sun is the head of the family. In addition to the sun as its master, the solar system also has some other main members. The earth we live on is just an ordinary planet in the vast solar system. It also has 7 brothers! Let’s take a look at the planets from nearest to far from the sun. What are the planets?

Earth

"Earth", the home of mankind, is already 4.6 billion years old. She originated from the primitive solar nebula. Under the influence of the earth's gravity, a large amount of gas gathers around the earth to form an envelope, which is the earth's atmosphere. The earth is like a top, spinning continuously from west to east along its axis.

The solar system is so huge, let’s try to do a simple calculation!

If we want to travel, we can choose three tools:

1. A train traveling at a speed of 200 kilometers per hour

2. An airplane flying 2,000 kilometers per hour

3. A rocket that flies 40,000 kilometers per hour

4. A spacecraft traveling at the speed of 300,000 kilometers per second

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For more information about the "Universe Solar System" PPT courseware, please click the Universe PPT Solar System PPT tab.

"Solar System" universe PPT teaching courseware:

"Solar System" Universe PPT teaching courseware Part One: Review of the previous section 1. When do solar and lunar eclipses generally occur in the lunar calendar? What moon phase? 2. What are the types of solar and lunar eclipses? 3. Try to explain the reasons for the solar eclipse in your own words. 4...

"Solar System" universe PPT download:

"Solar System" Universe PPT download Part 1: Introduction of new lessons In addition to the earth and the moon, what other celestial bodies do we know that are moving around the sun? What are the characteristics of these celestial bodies? How are they arranged? ... ... ... Solar system PPT, second...

"Solar System" Universe PPT:

"Solar System" Universe PPT Part 1 content: Understand that the solar system is centered on the sun, including the eight major planets that revolve around it (including satellites that revolve around the planets), dwarf planets, and small celestial bodies (including asteroids, meteors, comets, etc.) The system is called...

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Update Time: 2024-09-09

This template belongs to science courseware Science Edition for Sixth Grade Science Volume 2 industry PPT template

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