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1. It is a small maglev train.
Production preparation tools and materials, before carrying out the magnetic levitation work, prepare tools and materials, such as paper cups, magnets, iron clips, small wooden sticks, small screws and wires, as shown in the figure below.
2. Clamp the iron clamp on the magnet.
Next, clamp the iron clip on the magnet and place it on the table, as shown in the figure below.
3. Put the paper cup, small wooden stick and clamp with magnet together and prepare to combine, and then, put the paper cup, small wooden stick and clamp with magnet together and prepare to combine, as shown in the figure below.
4. Hang the clip on the small wooden stick and put it in the middle of the paper cup, next, hang the clip on the small wooden stick and put it in the middle of the paper cup, as shown in the figure below.
5. Tie the small screws with iron wire, wrap them with small wooden sticks for the magnetic levitation test, and then tie the small screws with iron wires and wrap them around the small wooden sticks to prepare for the magnetic levitation test, as shown in the figure below.
6. Lift the clamp with your left hand, put it down, put the small screw hanging with the wire near the paper cup, and then pick up the suction stone with your left hand.
Clamp, lift up and down, pick up the small wooden stick with the small screw tied with your right hand, and place the small screw hanging with the wire near the paper cup, as shown in the picture below.
7. Check the effect of magnetic levitation small batch production, explore the principle of magnetic levitation through observation, and finally, verify the effect of magnetic levitation small batch production, through observation, it can be seen that the small screw swings near the paper cup, just like dancing, when the magnet is clamped on the stick and swings, the magnetic field will continue to change, resulting in the change of magnetic force on the small screw, so that the small screw continues to swing.
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The method of scientific and technological handicrafts is as follows: 1. Take a Coke plastic bottle and cut off the bottom with a knife. 2. Buckle the bottom on the tabletop and draw the propeller on the bottom bulge with a marker.
3. Cut off the part of the propeller to get a more special propeller. 4. Then drill a hole in the middle of the propeller. 5. Then drill an offset hole in the propeller to lock the paperclip.
6. Drill holes in the center of the cap. 7. Pull a paper clip apart, keeping a hook. 8. String the cap, beads and propeller, and use small beads between the propeller and the cap to reduce friction.
9. There should be a hook inside the bottle cap. 10. Insert the extra part of the paper clip into the hole on the edge of the propeller. 11. Take out another plastic bottle and drill a hole in the center of the bottom.
12. Drill a hole on the edge, the position is as shown below. 13. Take another paper clip, open it and extend it through the middle hole at the bottom of the bottle, make a hook inside, and insert the other end into the hole on the edge to lock. 14. Take out a wire to make a hook, hook the rubber band, reach into the plastic bottle, and let the rubber band hook the paper clip hook at the bottom of the bottle.
15. Then stretch the rubber band out of the bottle mouth, hook it with the hook on the bottle cap, and tighten the bottle cap. 16. Use two rubber bands around the bottle to secure the two ice cream sticks as stabilizers, acting as "fins" to ensure that the body remains stationary. 17. The improvised submarine is finished, if the bottle is filled with air, the propeller will be above the water, and if the bottle is filled with water, it will become heavier and sink and cannot move.
Test different amounts of water in the bottle, try to get the propeller exactly submerged in the water, rotate the rubber band of the propeller, and you can move forward like a real submarine.
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Science production can cultivate children's hands-on ability, exploration ability, develop children's imagination and exercise their operation ability, the following is a few suitable for primary school students to introduce science experiments.
1 homemade shuttlecock.
Materials: 1 empty drink bottle, 2 fruit foam nets, 1 rubber band, 1 glass marb;
Production method: 1. An empty beverage bottle, minus the top half;
2. Cut to the neck of the neck with scissors, cut into 8 parts, and cut each part into the shape of petals of the same size;
3. Put the fruit foam mesh outside the bottle and fix it with a rubber band;
4. Take a foam net, wrap a glass ball, and stuff it at the mouth of the bottle, exposing about 1 cm;
5. Wrap half a table tennis ball on the mouth of the bottle, cut the four sides into whiskers, cover the mouth of the bottle and fix it with a rubber band, so as to make a badminton.
Science mini-production for elementary school students.
2 Microphones.
Materials: 2 paper cups, 1 thread, 1 pair of scissors;
How it works: Sound travels faster in solids than in air.
Production method: 1. Use scissors to drill a small hole at the bottom of each of the two paper cups (the size of the hole can pass through the line).
2. Tie a knot between the two ends of the thread through two small holes.
3. Mark the name, production principle, and use method on the work, and write the name and student number.
How to use: Two people, each holding a paper cup, one person puts the paper cup in the ear and closes it, and the other person speaks to the paper cup, and the sound transmission function is realized.
Precautions: 1. The thread cannot be woolen.
2. One person needs to put the paper cup on the ear tightly.
3. When using, the thread between the cups must be tightened so that the effect can come out.
Science mini-production for elementary school students.
3 Make a herbarium.
While conducting small experiments, it can help our children increase their understanding of various plants, which is of great significance to the expansion of children's knowledge.
Method: Sandwich the intact plant specimen between two napkins, we press the specimen with two wooden boards and place it in a dry, sunny place, otherwise the leaves may turn black. After a few days of specimens drying, we glue the specimens on the top of the paper, and finally mark them.
Science mini-production for elementary school students.
4 Make a tumbler.
Tumblers have always been a good memory for us when we were children, and for our elementary school students, it will leave many good memories if they can make one by themselves, and at the same time let them understand the center, the principle of gravity.
Method: Make a hole in the egg, pour out the yolk and egg white inside the egg, clean it and wipe it dry, introduce rice and glue into the egg, and wait for the glue to dry when the tumbler is completed.
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The small inventions suitable for first-grade students are: mini wind chimes or the following production methods: wrap the used oral liquid glass bottle (the quantity can be selected by yourself) and wrap the glass bottle with colored paper to make it more beautiful; 2.
Fill the bottle with different amounts of water so that it will make a different sound when tapping; 3.Using a rope or wire (you can wrap the wire) to make a wind chime or harp as you like, the glass bottle is combined.
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The science and technology knick-knades for Year 1 are as follows:1. Material preparation: an old hard carton (such as a toy box, snack box), plasticine, latex, 2 small wooden sticks, a ruler, and a utility knife.
Observe the appearance of the box, if there is a beautiful look that can be used as a decoration. The smiling face shown below.
<>3. Cut out the scrap material to a good size to make the head cover.
4. Dig out a front windshield opening for the front hood.
5. Paste transparent plastic with glue as the front glass.
6. Paste the front cover on the body, and the body also dig out the left and right window glasses and paste transparent plastic.
7. Make four wheels out of plasticine.
8. Wear the wheels with wooden sticks and install them on the body, and the carton car is made.
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The way to make a scientific handicraft is: aluminum foil rocket, prepare materials: black cardboard, aluminum foil, red paper towel, handmade white glue or tape, pencils, scissors.
The specific steps are as follows:
1. Draw a rocket shape on aluminum foil and cut it out. Take a red tissue and tear it in half, stick it to the black cardboard, and make a fire-breathing shape. Then glue the foil rocket to the black cardboard, slightly cover some of the "flames", and glue some shiny stars around the rocket.
2. Paper tube rocket:
Prepare materials: scissors, glue or tape, pencils, toilet paper rolls.
Wrap the paper tube around with colored paper, cut the paper using the length of the toilet paper roll and wrap it. Cut a piece of colored paper into a fan, roll it into a cone, stick it, and fix it at one end of the paper tube. Cut three small discs and glue them to the front of the paper tube; Cut two small triangles and insert them on both sides of the paper tube.
Finally, cut some strips of paper, stick them to the inside of the bottom of the paper tube, and the rocket to space is ready!
3. Hubble Space Telescope:
Preparation materials: toilet paper rolls, aluminum foil, bamboo skewers, cardboard, handmade white glue.
Poke holes on both sides of the toilet paper roll, use a bamboo skewer to pass through the sleepy gap, wrap the paper tube in aluminum foil, and glue it firmly with white glue. Cut two squares of cardboard, fold them in half and glue them to the sides of the bamboo sticks. Our "Hubble Telescope" is ready.
4. Big Dipper:
Prepare the materials: Cover the ruler to touch the blue or black cardboard, marshmallows, toothpicks.
The Big Dipper in the sky is most recognizable in the shape of a spoon, and it is also an important constellation for direction and constellation. We used toothpicks and marshmallows to form a Big Dipper shape, glued to cardboard, and decorated with a few scattered stars around it.
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How to make scientific and technological works by hand? As follows:
First we make a hole in the egg, then pour out the yolk and egg white in the egg, then clean it and wipe it dry, and finally we introduce rice and glue into the egg, and when the glue is dry, the tumbler is finished.
The benefits of making tech gadgets.
The significance and function of carrying out small invention activities is not only to create the actual results of invention and produce economic benefits to the society, but also to enable 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 of how education can adapt to the development of social services.
Knowledge can be taught, and the cultivation of ability, especially the creative ability, can only be gradually formed through the students' own practical activities. In the small invention activities, students give full play to the initiative of the subject through their own observation, self-selection, self-design and thinking, and the basic qualities of creative ability such as will, perseverance and originality of thinking, imagination and novelty, and accuracy of operation are of great significance.
Science and technology production can also exercise the hands-on ability and observation ability of primary school students, and of course, science and technology production can also increase knowledge.
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First, first of all, open a small hole in the bottle cap and bottle body. Cut off a piece of the balloon, take the "balloon belly" part, and put it on the plastic bottle cap.
Then make a small opening on the top and bottom of the balloon on the bottle cap, and fix the balloon with a rubber band.
Finally, put the new balloon on the pump, press the small hole of the bottle with your hand, release it again, cycle it several times, and the balloon will be inflated.
2. Preparation materials: a No. 5 (AA) battery, a hard copper wire, and a permanent magnet.
1. The battery must be selected to be attracted by the magnet.
2. The magnet should be the same diameter as the Jinkai battery and have a conductive metal plating.
3. Absorb on the negative electrode of the battery and ensure that it will not be short-circuited.
4. The copper wire is folded into the shape of a Xiangzhou call, and it can also be folded into more interesting lines.
5. It should be noted that the two sides below the copper line should not touch the magnet at the same time, and there should be a gap.
6. Adjust the upper and lower heights so that the current can pass through the copper wire on one side at a certain time to generate a loop.
7. Place the copper wire on the battery as shown below.
8. The small motor has begun to spin, so if you are interested, try it yourself.
3. Prepare materials: plasticine, eggshells, scissors, colored paper, pens, glue sticks, compasses.
1. Punch the small head of the egg shell, and try to make the edge part neat and <>
2. Draw a prototype with a radius of about 3 cm on the colored paper and cut it out with scissors.
3. After cutting the circle, subtract a right-angled fan on top of the circle.
4. On the top of the remaining three-quarters of the circle after subtracting, apply glue with a glue stick on the edge part of the fan-shaped part that has just been removed.
5. Glue the remaining two edges of the circle together, shaped like a cone, which can be used as a tumbler hat.
6. Take the appropriate plasticine and put it in the egg shell.
7. Apply glue evenly on the edge of the egg shell punching hole, and <>
8. Glue the finished hat to the top of the egg shell, and the tumbler is finished, and draw the eyes and mouth of the tumbler.
9. The cute tumbler is ready.
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