"Observing the Wind" Changing Weather PPT Courseware

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Hunan Education Edition Third Grade Science Volume 2	pptx	6 MB

"Observing the Wind" Changing Weather PPT Courseware

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Upload Time: 2024-11-25

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"Observing the Wind" Changing Weather PPT Courseware

The "Xianfeng Bronze Bird" invented by Zhang Heng

A copper bird holding a flower is placed on the top of a five-foot-high pole, which can rotate with the direction of the wind. The direction the bird's head faces is the direction of the wind.

wind vane

A wind vane is an instrument for observing wind direction. The direction pointed by the weathervane arrow is the direction of the wind at that time. Anemometer is an instrument for observing wind force.

Synchronous detection

1. Fill in the blanks.

1. The size of the wind is called ( ), and the direction in which the wind blows is called ( ).

2. ( ) is an instrument for measuring wind direction. ( ) is an instrument for measuring wind force.

3. Scientists generally set a total of 8 wind directions ( ), ( ), ( ), ( ), ( ), ( ), ( ), and ( ).

2. Judgment questions.

1. The wind has direction, but no magnitude, ( )

2. We now generally set the wind level at level 10. ( )

3. The Wind Bronze Bird was invented by Zhang Heng during the Eastern Han Dynasty of my country and is the earliest wind direction instrument in the world. ( )

3. Multiple choice questions.

1. Li Chunfeng divided wind into ( ) levels.

A. 4 B. 8 C.9 D.13

2. The ribbon on the playground is floating to the southeast, indicating that the wind direction is ( )

A. Southeast wind B. Southwest wind C. Northwest wind

3. "The leaf moves the red flag exhibition?" It describes ( )

A. Level 1 wind B. Level 3 wind C. Level 8 wind D. Level 10 wind

Keywords: Changing Weather Teaching Courseware, Observing Wind Teaching Courseware, Hunan Education Edition Third Grade Science PPT Courseware Download, Third Grade Science Slide Courseware Download, Changing Weather PPT Courseware Download, Observing Wind PPT Courseware Download, .PPT format ;

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Update Time: 2024-11-25

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"Observing the Wind" Changing Weather PPT Courseware