Preparation materials: an empty beverage bottle, two foam fruit net sets, a rubber band, a glass bullet.
Process:
1. Take an empty 250 ml beverage bottle, cut off the top half of the bottle;
2. The cut part is divided into eight parts, cut with scissors up to the neck of the bottle, and then, each part of the cut into the shape of a petal of the same size;
3. Foam fruit mesh cover outside the bottle, fixed with rubber bands in the bottle mouth;
4. Wrap another foam fruit net cover around a glass bullet, stuff it into the mouth of the bottle, stuff it tightly and expose it for about 1 cm;
5. Cut half a ping pong ball, cover the bottom of the hemisphere over the mouth of the bottle, cut the four edges into whiskers, cover the mouth of the bottle and then fasten it with a rubber band.
6. Beautify the finishing touches, a homemade badminton completed. Play with a badminton racket, see how the effect?
2, homemade soap paper
Materials and tools:
White paper with good moisture absorption, a small piece of soap, a brush and disposable beverage cans.
Making Methods:
First, the soap is chopped up and placed in the can, filled with the right amount of water and then put the cup on the stove to heat up the soap melting, cut the white paper into a matchbox size, a sheet coated with soap, and then take out the drying of the soap paper.
3, homemade hot air balloon
1. First we cut out 6 to 8 leaf-shaped pieces of soft paper.
2. Fold them in half and glue their edges together to make a balloon.
3. Tape four strings to the bottom of the balloon. Use playdough to attach the other end of the strings to the table.
4. Turn the hairdryer on as slow as possible. Point the mouth of the hairdryer upwards towards the opening at the bottom and turn the switch on. The balloon will slowly grow in size and pull the cord tight and off the table.
4, homemade flashlight
Specific production methods are: a waste cans (such as Lulu beverage cans) up off one end of the lid, the other end of the round hammer knocked concave. Use thick corrugated cardboard to roll up two batteries, the battery positive side up, negative side down into the can. Find a suitable plastic lid (e.g., a magical large rolled box lid will snap right onto the Lulu beverage can), and dig a small round hole in the center of the lid, the size of which is appropriate to allow the light bulb to be inserted tightly. Insert the bulb base into the hole. Take a piece of wire and strip the ends of the wire, wrap one end around the base of the bulb, and pierce the other end through a small hole in the side of the plastic lid. Place the plastic cover over the can. Check to see that the bulb and battery are not in close contact. Here the disposable flashlight is ready. When using, use your thumb to put from the side wall through the wire pressed from the cans without paint on the weld, the flashlight will glow, thumb away from the wire jumped up, the flashlight will go out, the use of very convenient.
5, homemade solar cooker
Find a large flashlight on the concave reflective bowl, with rigid foam or wood to cut a cylinder about 4 centimeters long, the diameter of the reflective bowl can be tightly plugged into the round hole appropriate. At one end of the cylinder transversely drilled a fine hole, threaded into a diameter equal to the hole diameter of the wire, and then exposed in the cylinder outside the wire ends wrench folded into 90 °, each left 5 cm can be. Plug the cylinder into the round hole of the reflective bowl, and then insert the ends of the wire into a piece of Styrofoam or wooden base plate. Sharpen both ends of a thin bamboo skewer and insert one end into the cylinder in the center of the reflecting bowl and the other end into a small piece of potato. Place the device in the sun so that the reflective bowl is facing the direction of the sun, and then, patiently adjust the length of the bamboo skewer so that the inserted potato sits right on the glowing focal point. It won't take long for the potato to be cooked by the sun's rays and give off flavor.
6, homemade colorful candles
Materials: color crayons, wax
Methods:
1. Find a discarded canned drinks barrel (such as 1.25-liter Coke bottles), neatly cut off the lid of the part of the wax chipped into the barrel.
2. Put the bucket in hot water and stir the wax inside to melt it all. It's best to use boiling water. But ask your parents for help or do this step under their supervision.
3. Pour the melted liquid into a nicely shaped container (such as a heart-shaped box with small pieces of choconai). Don't pour too much. As for why, read on. Of course, you'll want to put the thread for the wick in the container first.
4. When the original wax has cooled, pour in the melted colored crayon liquid (colored crayons come in handy here) as you did on the other side. In this way, the different colors of wax layer by layer to add, good-looking candle is made.
7, homemade wall hanging baskets
Materials and tools: two Sprite bottles, glue, carving knife, scissors.
Methods:
1. Remove the green bottom set of a Sprite bottle, cut it into a lotus shape, turn it down and glue the bottle into a base.
2. In the green bottom set intercepted 2 cm wide green ring, still set on the bottle.
3. Remove the neck of the bottle, cut out a 13 cm long and 8 centimeters wide wide band on the bottle, and a number of 3 cm wide narrow band.
4. Use a carving knife to carve a pattern on the 3 cm narrow strip? As in Figure 3, then fold these narrow strips outward and insert them into the green ring from the bottom up.
5. Take another beverage bottle and, using the bottle, cut out six 17 cm capsule leaves with scissors.
6. Nail the basket to the wall, insert the leaves and flowers, and the wall-mounted basket is made.
8, homemade cockroach capture box
Take a piece of cardboard 220 × 150 (mm).
The most important part of the capture box is the capture surface. Take a piece of plastic film, cut it to the same size as the bottom of the box, apply adhesive and lay it on the bottom of the box. Cockroaches can be caught, the key lies in the adhesive. Adhesive has two functions: one is to introduce cockroaches into the box, and the other is to stick them on the catching surface. Modulation of luring agent: mix 40% meat powder, 50% flour, 10% soybean cake, the total amount of about 20 grams, mix well and wait for use. Adhesive is 20 grams of rosin mixed with 10 grams of vegetable oil, heated to a gelatinous state, the lure and the adhesive mixed and stirred well, that is, made of adhesive.
To mix the above paste evenly coated in the plastic film has been lined with the capture surface, and then folded inward according to the original drawing of the dotted line, and finally the tongue b inserted in the notch a.
Because of the non-drying nature of the rosin and vegetable oil mixture, the bait can be made sticky for up to a week. Place the box in a cockroach-infested area. Because the box is darker and has a bait that the cockroaches like, the cockroaches will crawl into the box and fight for the bait and get stuck to it. Sticky full, both the carton can be flattened and discarded, but also remove the plastic film, plastic film coated with bait, so that the box can be reused.
If the size of the capture box to expand, and will be slightly adjusted to the composition of the adhesive, thickening the coating can be made of paper mousetraps
Clean erasers with brushes
Write the wrong word, to use the eraser. After erasing, there are always a lot of crumbs left on the paper. Whether you use your hand to shoot or blow with your mouth, it is unhygienic and troublesome. Making a clean eraser won't be such a trouble.
Materials: large eraser, waste brush.
Tools: scissors, glue.
Methods:
1. In the eraser at one end of the dig a shallow small round holes 2. to the end of the waste brush removed, washed and dried.
3. Cut off the tip of the brush head, so that it becomes a small brush
4. Nestle the brush head into the small round hole of the eraser, and glue it
Well, the clean eraser is made. Whenever you finish erasing the eraser, you can use a brush to gently "sweep" the paper debris together, and then poured into the waste paper basket.
The key to a very simple, the key is the idea. When I was in junior high school, I also did a small production, but also won the third prize. The key to this kind of production is to come up with good ideas to produce is not difficult. Let me recommend my little production back then to you.
I do is a small electronic balance model, note that this is a model, can only weigh very light objects, such as two small confetti. The materials needed to make it are: a board (preferably thin, not too big), a washer, crankpin, awl, soldering iron, a few wires, two light-emitting diodes, and a battery. These materials are very good to find, light-emitting diodes if you do not have can go to the electronics market to buy, very cheap.
The production process is like this: in the middle of the board with an awl to turn a small hole, will be bent into a hook shape of a crosshair, and the board perpendicular to the small hole through the board fixed on the board, hooks can be hung on the washer can be. Then take two crank pins and straighten one half of them, retaining only one inflection; in effect the straightened portion is the arm of the balance, and the remaining bent portion is the pallet. Do the same with the other curved pin. The two crank pins and the washer are then soldered together, with the washer in the center and the crank pin in a straight line. Then hang the washer onto the hook and adjust the distance between the hook and the board, about 3mm. Then in the two pallets under the fixed two crankpin, crankpin next to the preparation of light-emitting diode for the indicator. Set up a circuit under the planks, the balance is equivalent to a single-pole double-throw switch. This circuit is then equivalent to two circuits, *** with one power supply and two light-emitting diodes. As long as the left side of the sinking, the left side of the tray will be connected to the pin below him, thus the circuit is on, the diodes light; if the two sides of the weight is equal, the circuit is not available, both diodes are not bright.