"Who Ushers in the Dawn First" The Movement of the Earth PPT Courseware

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"Who Ushers in the Dawn First" The Movement of the Earth PPT Courseware

Experimental steps

1. Aim the aperture of the flashlight at the starting point of the globe

2. Without moving the flashlight, slowly rotate the globe from west to east and from east to west. (Whoever enters the aperture first will usher in the dawn first)

3. Record the observation results on the record sheet in a timely manner

4. Repeat step 2 to verify the results

5. Organize materials

Experiment record sheet (1)

Our group found:

When the earth rotates from west to east, ______ usher in dawn first;

When the earth rotates from east to west, ______ usher in dawn first.

question:

1. What standards are used to divide time zones?

2. How many time zones is the earth divided into?

3. How many hours are the difference between two adjacent time zones?

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"Who Ushers in the Dawn First" The Movement of the Earth PPT Courseware 5:

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Update Time: 2024-06-28

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

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