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  • Why the candle goes out Material preparation: Wide-mouth bottles of different sizes and small candles of the same thickness and big filial piety. Experimental operation: (1) After lighting a small candle, cover it with a jar, observe the change of the candle, and understand that the candle needs air to burn. (2) Light two small candles at the same time and use two wide mouths of different sizes
  • Balloon power car material preparation: balloons (same size and different), toy cars (same size and different), waste pen tubes, scotch tape. Production method: (1) Put the balloon on the ~ end of the old pen tube, and fix it with a thread, and then blow the balloon through the pen tube. After blowing the balloon, use a pen cap
  • Preparation of iron nails into magnet materials: battery panels, iron nails, wires, and small iron pieces. Production method: (1) Wind the wire round and round on the nails, and expose the two ends of the wire. (2) Connect both ends of the wire on the nail to the ends of the wire on the battery board on which the battery is placed. Experimental operation: (1) in connection
  • 科学小实验:不沉的纸船 2019-07-24Science Experiment: Unsinkable Paper Boat
    Unsinkable paper boat material preparation: white paper, crayons, water basin filled with water. Production method: Select two pieces of white paper of the same size, and stack one of them into a paper boat; use a crayon to paint the front and back of the other white paper with colors, and then stack them into a paper boat. Experimental operation: Put two paper boats into the water basin at the same time and observe a period
  • Preparation of non-wet handkerchief materials: transparent glass, small handkerchief, a basin of water. Experimental operation: (1) Plug the small handkerchief to the bottom of the glass, plug it tightly, then place the glass mouth vertically downwards in a basin filled with water, and then take it out vertically after a while, observe the handkerchief in the glass Will it be wet with water. (2) Take two
  • Where is the air prepared: a variety of plastic bags, soil, pots, water. Experimental operation: (1) Open the plastic bag to catch the air indoors or outdoors. After catching, tighten the mouth of the plastic bag, then release it towards your face, feel the presence of air, or tie the mouth of the plastic bag, observe Understand the air is invisible, nothing
  • Rotating disc material preparation: balloons, used watercolor pen holders, discs, straws. Production method: (1) Wash a used watercolor pen holder clean, cut off the thick end to make it fit into the hole in the center of the disc, and keep the lower end flat without exposing the disc. (2) Tie the balloon to a straw and
  • Preparation of homemade anemometer materials: bottle caps (same size), straws (same length, same thickness), corks, pins with beads at the top, and plastic beads. Production method: (1) Insert two straws together in a cross shape. (2) Fix the bottle cap on both ends of the straw with super glue, and the cap direction is as shown in the figure.
  • Preparation of homemade weather vane materials: straws, cardboard, pins with beads at the top, + plastic beads, pencil with eraser. Production method: (1) Cut a gap between each end of the straw. (2) Use cardboard to cut a small triangle and a large triangle trapezoidal arrow (small triangle) and tail (
  • Preparation of homemade parachute materials: sandbags, small handkerchiefs (different sizes), string. Production method: Tie the four corners of the small handkerchief with a thin rope, and then tie the other end of the rope to a sandbag. Experimental operation: (1) Let the deceased child freely throw the parachute upward to observe how the parachute descends, and experience the joy of the game. (2) let
  • I will learn to prepare printing materials: clay or hard plasticine, toothpick, paint, brushes, white paper. Production method: (1) Shape the pottery clay into a common seal shape, such as a cuboid or a cylinder, cut the side to be flattened, and use a toothpick to write the positive and negative characters of the characters you want to print. (2) according to oneself
  • Music bottle materials preparation: 8 glass bottles of the same height and thickness, 7 color sticks (chopsticks, drumsticks, etc.) of different colors. Production method: 1. Arrange the bottles in a row, and pour different amounts of water into each bottle (the amount of water from small to large). 2. Pour a paint into each bottle (the first bottle and the first
  • Preparation of wired telephone materials: two empty eight treasure porridge pots, one string, drill, and wrapping paper. Production method: (1) A hole is punched in the middle of the bottom of each Babao porridge pot, and the diameter of the hole is preferably able to pass through the string. (2) After passing the string through the small holes in the two cans, tie a knot at each end of the string.
  • Preparation of non-dropping ball materials: table tennis, glass bottle (the bottle mouth is slightly larger than table tennis). Experimental operation: Put the table tennis on the table, with the glass bottle mouth facing down, and put it on the table tennis. Quickly rotate the glass bottle on the table to observe the movement of the table tennis in the bottle. Guidance suggestions: Tips for children to rotate from slow to fast
  • Preparation of colored shadow materials: 3 to 5 mineral water bottles of the same size, watercolor pen paint, flashlight, paper box, white cloth, water. Production method: (1) Add water color pen pigments and water of different colors into mineral water bottles, stir well to make colored water. (2) Cut off the upper part of the big carton, and spread the bottom
  • Preparation of sinking and floating experiment materials: wooden toys, plastic toys, sponges, table tennis, paper clips, stones, glass balls and other materials of different textures, record tables, water basin filled with water. Experimental operation: (1) When playing, let them put various materials into the water basin and observe which materials will sink and which
  • Preparation of frozen ice flowers: small bowl, cotton thread, bright paper confetti, water. Production method: (1) Put bright paper confetti in a small bowl and pour water. (2) Put one end of the cotton thread in a small bowl and expose the other end outside the bowl. (3) Freeze the small bowl in the refrigerator (if it is winter, it is best to freeze it outdoors).
  • Preparation of small capsule materials that can turn around: 3 empty capsules, 1 steel ball, several small sand grains, 1 piece of cotton, 1 piece of cardboard, and several building blocks. Production method: (1) Put steel balls, sand, and cotton into 3 empty capsules respectively. (2) Stack up a few blocks, and fold the two sides of the cardboard to make a track.
  • Preparation of melting and dissolving materials: several small bowls of the same size, thermometer, sugar cubes, coffee, sugar, salt, spoon, cup, drinking water. Experimental operation: (1) Put several small bowls of the same size filled with water into the refrigerator to freeze the water into ice cubes. If it is cold in the winter, it can be frozen outdoors. (2) Several
  • Preparation of magical magnifying glass materials: magnifying glass, flat mirror, various objects or specimens, black paper, white paper, scissors. Experimental operation: (1) Observe various objects or specimens with a magnifying glass. (2) Observe and compare the difference of the same object under a flat mirror and a magnifying glass. (3) Ignite with a magnifying glass: when the weather is fine, take
  • Preparation of magic papermaking materials: waste paper, water, glue, rubber gloves, plastic plates, gauze, wood sticks. Production method: (1) Tear the waste paper after soaking it in wet, as small as possible, and then soak it in an appropriate amount of water. (2) Wear rubber gloves to scrape the soaked paper, add glue and stir with a wooden stick
  • Preparation of water absorption experiment materials: newspaper, electro-optic paper, paper towel, kraft paper, dropper, water basin, ruler, tape. Experimental operation: (1) Cut newspaper, electro-optic paper, paper towel, and kraft paper into strips of the same size, and then stick one end with a tape on a ruler to make the hanging paper strips the same length. Hold a ruler in your hand
  • 科学小实验:小刺猬长刺 2019-07-15Science Experiment: Little Hedgehog Spikes
    Preparation of materials for small hedgehog thorns: magnets, iron filings, rectangular plastic trays, white paper and crayons of the same size as the bottom of the trays. Production method: (1) Draw a small hedgehog squatting under the apple tree on the paper, pay attention to the thorns on the hedgehog. (2) Spread the picture on the tray. Experimental operation: lightly dust the iron filings
  • Preparation materials for shadow formation: flashlight, small doll (opaque object), glass (transparent object), plastic cup (translucent object), recording paper, pen. Experimental operation: (1) Put three kinds of objects on the floor, irradiate with a flashlight, observe and record their shadows. (2) Change the position of the flashlight
  • Preparation of interesting tumbler materials: plastic table tennis, plasticine, colored paper, watercolor pens, sand, mung beans. Production method: (1) Cut a small opening of the plastic table tennis ball, and glue the plasticine to the middle position of the bottom and inside of the ball, as the body of the tumbler. (2) Make a cone with colored paper, draw the features, and make
  • Preparation of homemade bubble water materials: washing powder, meal washing, soap tablets, small spoons, water, cups. Experimental operation: select any material and stir it into a water cup to make bubble water and play with bubbles. Guidance: remind children to use various materials to make bubble water, see which material dissolves quickly and which one
  • Preparation of homemade fountain materials: two larger empty beverage bottles (such as Sprite bottles), tacks, and water Eyelet. (2) Put several small holes with different diameters in the cap of another Sprite bottle. Experimental exercise
  • Preparation of homemade hourglass materials: several identical mineral water bottles (bottle mouth size varies), sand, stopwatch. Production method: (1) Two identical mineral water bottles are a group, and one of the mineral water bottles is filled with an appropriate amount of sand. The amount of sand in each set of bottles remains the same. (2) Separate each group of mineral water bottles
  • Preparation of homemade gyro materials: discs, watercolor pens, sticky notes of various colors. Production method: Decorate the disc with various sticky notes, and then pierce the watercolor pen with a moderate thickness through the small hole in the disc.
  • Water pipe material preparation: a long straw, a pair of scissors; a glass milk bottle; a bottle of water. Experimental operation: 1. Use an empty glass milk bottle to put more than half a bottle of water into the bottle. 2. Use scissors to cut a hole at about a third of the long straw to make it almost disconnected, but still connect it. A little; 3. make the straw
  • Beautiful rainbow material preparation: two plastic water bottles, a pair of compasses; an awl, some water; a small sewing needle. Experimental operation: (1) Use a sewing needle to pierce more than twenty small holes in the plastic bottle cap, fill the plastic bottle with water, and close the cap tightly, with the person facing the sun, hold the bottle, and squeeze gently Make water spray
  • Magnetic line material preparation: a small plate, a plastic bag; a piece of handmade paper, some iron filings; a strip magnet. Experimental operation: (1) Put the magnet in a plastic bag, stir it in a sand pile, then take out the plastic bag and put it in a small plate. Take out the magnet, and the iron filings will fall off.
  • Battery family material preparation: Various types of batteries, a battery family map of electric toys. Experimental operation: (1) Observe the appearance characteristics of the battery, and sort or line up the batteries according to the model and function. (2) Select the appropriate battery and install it in the electric toy according to the correct method to make the electric toy move.
  • Isolate the balloon material preparation: two balloons, dry flannel (or woolen sweater), thin thread. Production method: blow two balloons with air, tie them to prevent air leakage, and connect them with thin wires. Experimental operation: (1) In the middle of the thin line of the hand, two balloons are found next to each other. (2) dry
  • Preparing flower material: two light-colored stemmed flowers, two identical transparent bottles, blue ink. Experimental operation: (1) Inject the same amount of water into two transparent bottles, one of which is dripped with a few drops of blue ink. (2) Put the two flowers into the transparent bottles, and observe the color change of the flowers after several days. Guidance
  • Scientific small experiment: Beautiful vein samples. Experimental steps: First, find some leaves with thick leaves and thick veins. Cook the leaves in alkaline water for a while. After the leaves are boiled in alkaline water, the mesophyll will be removed. Rosin, pigment, and paint water (usually used in woodworking) are mixed together, fully

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