"The Story of the Earth" PPT

Description

Hunan Education Edition Fifth Grade Science Volume 1, The Story of the Earth PPT

The first part contains:

People's understanding of the shape of the earth has gone through a long process...

Ancient Chinese believed that the sky was round and the earth was square.

The ancient Babylonians believed that the earth was like a hollow mountain with a bulge on the back of a turtle, surrounded by sea water, and the sky was a huge round canopy.

The ancient Greeks and Romans believed that the earth was like a huge shield, surrounded by a vast and unfathomable sea.

The Story of the Earth PPT, Part 2: Experiment

Simulation experiment: observing sailing ships entering the port

Experimental steps:

(1) Make a small boat out of plasticine and insert a matchstick as a mast.

(2) Use basketball as "earth".

(3) Let the "ship" "sail" on the "earth".

(4) Do we have the same feeling as the ancient Greeks when observing the "ship" entering the "harbour"?

(5) Put the "ship" on the table and "sail" it. Do you see the same phenomenon?

With the development of science and technology, human beings' understanding of the earth continues to deepen. Through precise calculations by earth satellites, it was found that the earth is an irregular sphere with slightly flattened poles and slightly bulging at the equator.

What do you think of the process of human exploration of the shape of the earth, from guesswork to practice, from phenomenon to truth?

Keywords: Hunan Education Edition fifth grade science PPT courseware free download, Earth Story PPT download, .PPT format;

For more information about the "The Story of the Earth" PPT courseware, please click the "The Story of the Earth" ppt tag.

"The Story of the Earth" PPT download:

Hunan Education Edition fifth grade science, first volume science, the story of the earth PPT download, the first part of the content: understanding the earth understanding the earth 1 the ancient Chinese believed that the sky was round and the earth 2 the ancient Greeks observed the ships entering the port and believed that the earth was a sphere 3 Aristotle's observation Lunar eclipse, discover the moon...

"The Story of the Earth" PPT courseware:

Hunan Education Edition fifth grade science, first volume science, the story of the earth PPT courseware, the first part of the content: the position of the earth and natural disasters The earth is the third planet from the inside to the outside of the solar system, and is also the terrestrial planet with the largest diameter, mass and density in the solar system . The earth has 4.4 to 4.6 billion...

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Update Time: 2024-10-20

This template belongs to science courseware Hunan Education Edition Fifth Grade Science Volume 1 industry PPT template

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