"Explanation of Polar Day and Polar Night" Earth's Movement PPT Courseware 3

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"Explanation of Polar Day and Polar Night" Earth's Movement PPT Courseware 3

There are many strange things about the Earth's North and South Pole, one of which is the length of the polar day or night. In the summer of the Northern Hemisphere, the sun hangs in the Arctic sky for a long time but never sets. The daytime in the center of the Arctic even lasts for half a year. But in the winter, the sun cannot be seen for several months, and it is dark everywhere near the North Pole for half a year. among. People call this phenomenon extreme day and extreme night.

The range of extreme day or night

Polar day and polar night only occur in the Arctic Circle or Antarctic Circle. Can't be seen anywhere else. However, aurora can be seen in some places at lower latitudes.

Simulation experiment:

1. Equipment needed: globe, flashlight, cardboard

2. Operation method:

①Use a globe to represent the earth, a flashlight to represent the sun, and a cardboard to represent the twilight line.

②The earth revolves around the sun and rotates at the same time. Look at the phenomena occurring at the North Pole and Antarctica.

③ Use drawings to explain.

Our explanation:

The phenomena of polar day and polar night are related to the rotation of the earth, the revolution of the earth, and the tilt of the earth's axis.

We already know that the Earth's axis is tilted at about 23 degrees.

discuss:

1. What if the tilt angle of the earth's axis is larger?

2. What if the tilt angle of the earth's axis is smaller?

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For more information about the PPT courseware "Explanation of Polar Day and Polar Night on the Movement of the Earth", please click on the PPT tag of "Explanation of Polar Day and Polar Night on the Movement of the Earth".

"Explanation of Polar Day and Polar Night" PPT download of the movement of the earth:

"Explanation of Polar Day and Polar Night" PPT Download of Earth's Movement Part One: Exploring New Knowledge The phenomenon of polar day and polar night The phenomenon of polar day and polar night is the result of the tilt of the earth's axis causing sunlight to hit the polar regions at different times. So people in the polar regions can see the sun for a period of time...

"Explanation of Polar Day and Polar Night" Earth's Movement PPT:

"Explanation of Polar Day and Polar Night" PPT on the Movement of the Earth Part One: The Phenomenon of Polar Day and Polar Night There are many things that are strange at the South Pole and the North Pole of the Earth, one of which is that the polar day or night is very long. In the northern hemisphere summer, the sun always hangs over the North Pole..

"Explanation of Polar Day and Polar Night" Earth's Movement PPT Courseware 4:

"Explanation of Polar Day and Polar Night" The Movement of the Earth PPT Courseware 4 There are many things that are strange at the South Pole and North Pole of the earth, one of which is that the polar day or night is very long. In the northern hemisphere summer, the sun hangs in the Arctic sky but never sets. In the Arctic...

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Update Time: 2024-09-28

This template belongs to science courseware Fifth Grade Science Volume 2, Textbook Edition industry PPT template

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