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Authoritative PPT Summary
The Hunan Education Edition of the second volume of science for sixth grade, our science learning process PPT courseware
Part One: The Development History of Science
Let us review the development of science from ancient times to modern times!
1. In primitive society, humans were able to use tools such as stone tools.
2. In agricultural society, the emergence of iron, the invention of tools such as sickles and plows, and manufacturing improved work efficiency.
3. The four great inventions of ancient China: papermaking, printing, gunpowder, and sinen, further promoted the development of human production and life.
4. In modern times, the Polish astronomer Copernicus wrote "On the Revolution of Celestial Bodies", which denied the misconception that the earth is the center of the universe.
5. Modern scientist Galileo made great contributions to astronomy and mechanics, and personally built the world's first astronomical telescope.
6. Newton was a great British scientist in the 17th century. His law of universal gravitation and the three laws of mechanics laid a solid foundation for scientific development.
7. The British biologist Darwin proposed the theory of evolution of "natural selection and survival of the fittest", which brought a revolution to the development of biology and even the entire natural sciences.
Our scientific learning process PPT, part 2: scientists
Can your discerning eyes identify which scientists they are?
At the beginning of the 20th century, the application of electric power and internal combustion engine technology set off a wave of modernization. An electric power application technology system consisting of generators, motors, transformers, electronic instruments, high-voltage transmission networks, and various cables was formed. Science and technology promoted social progress and caused changed the entire society.
Human inventions include telephones, televisions, computers, atomic bombs, etc.
The Internet was launched in 1969 and opened to the public in 1993. It has developed rapidly. By 1996, the number of Internet users reached 260 million. Computers have connected the world into a global village, thus bringing mankind into the information age.
Our scientific learning process PPT, the third part: conclusion
Throughout the history of scientific development, scientific achievements have been achieved in the process of continuous exploration of nature. China is an ancient civilization with a long history. Today, China is also moving towards becoming a scientific power. We must arm ourselves with science and become useful talents who can adapt to the development needs of the new era.
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"Our Science Learning Process" PPT:
Science in the second volume of the sixth grade of the Hunan Education Edition, our science learning process PPT, the first part of the content: Content introduction About two to three million years ago, humans entered the Paleolithic Age. During this period, most of the stone tools used by people were made of quartz and lava. , made of flint, used to cut...