"The Sun and Humanity" PPT courseware

Description

"The Sun and Humanity" PPT courseware

The relationship between the sun and humans

The sun is the closest star to us and affects all living things on earth. So in this lesson, we will explore and summarize the impact of the sun on human beings from multiple angles.

Take a look and discuss:

Look at the color picture on page 36 of the textbook and look for it. What content in the picture is related to the sun?

Sun Profile

1. The sun is like a huge hot balloon.

Main ingredients: hydrogen and helium

Surface temperature: 5500 degrees Celsius

2. It takes more than 8 minutes for sunlight to reach the earth.

case:

In 1940, there was a telegraph operator named Brooke in the German Army Command. When he was performing a mission in World War II, communications were suddenly interrupted and the information was blocked, which delayed the fighter planes and led to the failure of the battle. Brooke was sentenced to death by the military court...

Who is the culprit?

think about it

The summer of 2002 was different from previous years. People seemed to be particularly afraid of the sun. On the streets of Hangzhou, there are more "fully armed" ladies. Why is this?

During peak solar activity years, the sun's ultraviolet rays are enhanced and can cause damage to the skin.

The impact of the sun on humans

The sun provides light energy and heat energy.

Coal, oil, and natural gas are all products of biological fixation of solar energy.

Water energy and wind energy also come from the sun.

Most of the electrical energy is indirectly converted from solar energy.

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"The Sun and Humanity" PPT Courseware 2:

"The Sun and Humanity" PPT Courseware 2 The sun is the nearest star to us, and it affects all living things on the earth. So in this lesson, we will explore and summarize the impact of the sun on human beings from multiple angles. Reading during the day During the day, the sun provides us with...

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Update Time: 2024-11-14

This template belongs to science courseware E-education edition sixth grade science volume 2 industry PPT template

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