1. Screen: Arts and crafts: scissors, crayons, bamboo (bamboo strips are enough), scotch tape, art knife, pencil, etc.

A: Cut the bamboo into two toothpick-thick bamboo strips, and then cut them off by 8CM. * * * Need five bamboo sticks. Of course, for screens, the length and number of bamboo strips can be increased.

B: Find some colored cardboard, such as a calendar with landscape paintings. Of course, you can also draw it yourself. It takes four pieces to cut a rectangular strip (strip) with a length of 7CM and a width of 3CM.

C: Splice four bamboo sticks with five bamboo sticks, add one between two bamboo sticks, and use transparent tape.

D: Fold the semi-finished products along the junction of bamboo strips and painting strips to make the screen look like a folding fan, then leave it like this for a few minutes, and then open it, then a three-dimensional screen is completed, and you can also write some famous sayings and aphorisms on it! Very good handicrafts!

2. Simple fan physics plus art plus production: a jar, a pair of scissors, a tinplate, a batten, a four-wheel drive motor, a bottle of super glue, and some colored LED bulbs (or bulbs and diodes).

Answer: Cut off the upper half of the tank by scissors about 1cm, and keep the remaining tank, that is, first make a "cup", then draw three pieces on the cup at equal intervals, then keep these three pieces, cut off the rest, and then present a circular base with three blades, like a propeller, and then drill a round hole slightly smaller than the motor shaft in the middle of the base with scissors tips.

B: There is a tinplate (that is, an ordinary piece of iron) that wraps the motor tightly and then nails it to the batten.

C: Fix the blade on the central shaft of the motor with super glue to ensure the vertical, horizontal and windward performance of the blade.

D: Connect the two wires of the motor to the LED bulb, and ensure that the wire interfaces are connected normally (positive and negative, with good contact).

E: Run forward with a stick in hand, or put it on a bike. Under the action of wind power, the blades are driven to rotate, and then the motor rotor is driven to rotate. As a result, magnetoelectricity is generated, and the LED light bulb lights up. If the wind is steady, it is no different from a battery. If the wind is fluctuating, the LED bulb will light up and go out. If you add a sensitive charger, you can store the current and then release it, which will be ideal.

1. Rubber band power trolley: two rubber bands, 10 pair of disposable chopsticks (including spare), a pop can, a pair of scissors, art knife, 5CM wire, beverage bottle cap and super glue.

A: Cut the tank, stretch cut the cut aluminum plate to get a propeller blade, drill a hole slightly smaller than the diameter of the iron wire in the middle of the propeller blade, firmly fix the iron wire on the hole, then tie the iron wire near the center of the blade 1CM, then pass through the beverage bottle cap and tie a knot after passing through it, so as to do this.

B: Put two chopsticks on the table to form an isosceles triangle, two chopsticks are at the waist, the intersection of the two chopsticks is called the vertex, and the feet of the two chopsticks are called the bottom point. Glue the vertices with super glue, then glue half the length of the two chopsticks to the bottom points of the two chopsticks respectively, then glue their vertices together, then think of a dihedral angle, and then glue the two vertices with one chopstick.

C: Install a wheel with a bearing on the bottom point of the first isosceles triangle, install a wheel on the apex, then connect the rubber band at the apex of the semi-chopsticks, install the propeller blade with a bottle cap on the apex of the semi-chopsticks, adjust the approximate length, and hook the rubber band on the steel wire hook.

D: Turn the blade and wind it up. If it's loose, the car will run away by itself!

2。 Dynamic modeling. It's easier than above! Three tires, a battery box, a motor, two wires, two pairs of chopsticks, a bearing (bicycle spokes are enough), super glue,

A: Glue the 1|3 of another pair of chopsticks at one end, showing a vertical line in the middle. Put the bearing on two wheels and fix it on the short chopsticks, then use super glue to stand the battery box in the middle of the long chopsticks and lead out two wires.

B: Put the remaining wheels on the motor shaft at the other end of the long chopsticks, and stick the motor on the other end of the long chopsticks with super glue, which is a simple three-wheeled chopsticks racing car.

C: Circuit connection: It's very simple. After opening the battery, just connect the two wires directly to the two electrical boards of the motor (as long as good contact is ensured). If the car is found to be walking backwards after connection, just reverse the position of the wire!

I am absolutely original, and this answer has been rated as a good answer by many netizens. I am the producer!