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Scientific small production is waste utilization, using waste to make some valuable small objects, such as decorations, etc., the common practices are as follows:
1. Prepare materials and tools for making rocket and space models, such as a beverage bottle, a number of colored paper, a pair of scissors, a piece of tin foil, a number of corrugated paper, and paint.
2. Cut off the bottom of the bottle, leaving a section of the bottle mouth, about 20 cm, as the body of the rocket model, and make a hole near the bottle mouth.
3. Make a sharp taper with corrugated paper and put it on the mouth end of the beverage bottle as the head of the aerospace model.
4. Use paint to color the beverage bottle, as well as corrugated paper as the pillar of the base of the space model, and the rocket head can be wrapped in tin foil without paint.
5. Cut four openings at the low end of the beverage bottle, load the corrugated paper, and then glue the beans as a decoration and add color.
6. Equip the rocket model with a tail, you can tie it into a bunch with thin strips of paper and stuff it into it as a tail, and the super good-looking rocket model made from a drink bottle is ready.
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Scientific small production: it is waste utilization, using waste to make some valuable small objects. For example, to make an "exact bookmark", in the past, the bookmark could only be accurate to which page, and the exact bookmark could be accurate to which line; Method:
Use a discarded toothpaste box to cut a long bookmark and cut a semicircle on it to hang on a certain page of the book; The bookmark is covered with a paper ring that can be moved up and down, the paper ring is fixed with transparent glue, and an arrow is drawn on it, and it is done.
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Scientific small production: use the items that are easy to get around you, combined with certain scientific principles, to make a new and valuable object, and sometimes it may be a prop that can explain the scientific principle.
Such as: fruit battery, water rocket, kaleidoscope and so on.
Hope it helps!
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The production process of the third-grade science Xiao Shichun is as follows:
Tools and materials needed: plastic bottles, foam balls, spoons, foam boards.
1. Prepare the tools and materials for the triboelectric experiment, including plastic bottles, foam balls, spoons, and foam boards, as shown in the figure below
2. Open the bottle and take out the spoon as shown in the picture below
3. Use a spoon to take the foam ball, and the liquid is shown in the following figure
4. Put the foam ball into the plastic bottle of Shiming buried through the peel, as shown in the figure below
5. Shake the foam ball in the bottle as shown in the figure below
6. Take a foam board and rub it on your hair to start electricity, as shown in the figure below
7. Put the foam board close to the plastic bottle and observe the experimental results, as shown in the figure below
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Here's how to make a science mini-production:
1. Homemade badminton, prepare an empty drink bottle, two foam fruit net covers, a rubber band, and a glass marble. Take an empty 250ml drink bottle and cut off the top half of the bottle. Divide the cut parts into 8 equal parts, cut them to the neck of the neck with scissors, and cut each part into the shape of petals of the same size.
2. Then put the foam fruit net sleeve on the outside of the bottle and fix it at the mouth of the bottle with a rubber band. Wrap another foamed fruit net around a glass marble, stuff it into the mouth of the bottle, and tighten it to expose about 1 cm. Cut off half of the ping pong ball, cover the bottom of the hemisphere on the mouth of the bottle, cut the four sides into a whisker, cover the mouth of the bottle and fix it with a rubber band.
After beautification and retouching, a homemade shuttlecock was completed.
The significance and role of small invention activities lies not only in creating the actual results of inventions and generating economic benefits to the society, but also in enabling children to get in touch with social reality as early as possible, participate in practice, expand their horizons, develop their intelligence, and cultivate the spirit of exploration and creative ability. Cultivating creative ability is the requirement of the times, and it is also a major reform topic of how education can adapt to social development and serve society.
Knowledge can be taught, and the cultivation of ability, especially creative ability, can only be gradually formed through the student's own practical activities. In the small invention activities, students can give full play to the initiative of the subject through their own observation, selection of topics, design and thinking, and play an important role in cultivating the sensitivity, will, perseverance and thinking of observation.
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The steps to make a microphone are as follows:Preparation of materials: two paper cups, a piece of wool, — scissors.
Operation steps: 1. Prepare two paper cups, a piece of wool, and scissors.
2. Use scissors to pierce a small hole in the center of the bottom of the paper cup, the hole should not be too big, and it can pass through the line.
3. Thread the end of the thread into the paper cup from the small hole at the bottom of the paper cup, and then tie a knot.
4. Another paper cup also uses the same method to pass the thread through the small hole, and then tie a knot, and the microphone is ready.
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