"Flowing Air" Air PPT Courseware 2

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"Flowing Air" Air PPT Courseware 2

Steps to make paper pinwheel:

1. Use scissors to cut out according to the lines drawn on the square piece of paper;

2. Fold the cut circular colored paper in half;

3. Repeat step 2 and fold it in half twice more;

4. Use scissors to cut the disc along the crease to the edge of the inner circle;

5. Fold the paper along the red dotted line;

6. Push a thumbtack through the center of the circle and nail it to the stick.

Safety Tip 1:

When using scissors, students must be careful not to injure themselves or others; do not pierce their hands when using thumbtacks, and do not drop them to the ground to avoid being stepped on! ! !

Safety Tip 2:

Don't light the pinwheel while the candle is burning, and don't knock the candle over! ! !

Guide car mailbox:

China has long used rising hot air as power. The revolving lantern, which was very popular during the Ming Dynasty in China, was invented more than 800 years ago. Its principle is the same as that of modern gas turbines.

The revolving lantern, also known as the horse-riding lantern, is one of the traditional Chinese toys and a type of lantern. It is commonly seen in festivals such as Yuanxi, Lantern Festival, and Mid-Autumn Festival. A candle is lit in the lamp, and the heat generated by the candle causes airflow, causing the wheel axis to rotate. There is a paper cut on the wheel axis, and the candlelight projects the shadow of the paper cut on the screen, and the image moves continuously. Because there are many pictures of ancient military commanders riding horses on each side of the lamp, and when the lamp turns, it looks like several people are chasing each other, so it is called the revolving lantern.

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For more information about the PPT courseware "Air Flows Air", please click the "Air ppt Flows Air ppt" tag.

"Flowing Air" air PPT courseware:

"Flowing Air" air PPT courseware Do it. How to make beautiful paper pinwheels? Follow the steps and methods in the picture above to make a paper pinwheel. Is there any way you can make the pinwheel spin? Use your brain 1. What drives the pinwheel to spin...

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Update Time: 2024-09-28

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

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