How to make a rainbow out of paper. How to create a rainbow at home
Double-sided craft "Rainbow" for children from 4 years old. Step-by-step master class with photo.
Nadezhda Viktorovna Vinogradova, teacher at GBDOU d/s No. 14, St. Petersburg.Description: This master class is designed for children from 4 years old (provided that the paper strips are prepared by adults), educators, teachers primary school, teachers additional education, parents.
Target: making crafts using cotton pads.
Tasks: consolidate knowledge about the primary colors and their sequence in the rainbow; develop aesthetic feelings, a sense of composition, accuracy, fine motor skills, and practice working with cotton pads and glue.
Purpose: interior decoration, experiments with wind (wind direction and strength), breathing exercises (exhalation force).
The summer rain has passed since the morning,
The sun came out.
The child was surprised
Looking out the window, -
Seven-color arc
Covered up by the clouds! (Rainbow)
So wonderful a natural phenomenon how a rainbow could not go unnoticed: in folk art, many riddles, proverbs, sayings and signs are dedicated to the rainbow, many poems were written under the impression of this phenomenon.
RAINBOW
Multi-colored ribbons
They hover above the ground,
Amazed people
They look to the heavens.
The rainbow spread
Smooth semicircle
Festive halo
It suddenly opened.
Multi-colored miracle
Mystery of the Earth,
Unanswerable miracle
In the dust of the sun.
A splash of fabulous sparkles,
Washed by the rain.
Rainbow over the cloud
The flower bed took off.
Rainbow washed
Seen in the distance.
Marvelous rocker
On the shoulders of the Earth.
(Iraida Mordovina)
The order of colors is determined by the first letters: K - red, O - orange, etc.
Every
Hunter
wishes
Know
Where
Is sitting
Pheasant!
And we can make a rainbow that will not disappear and will delight us even on a rainy or snowy day!
Materials: small sheet of cardboard (any color, I have white), double-sided colored paper, pencil, ruler, scissors, PVA glue, cotton pads, white thread.
Progress:
Cut 2 cm wide strips of double-sided colored paper in the colors found in the rainbow
Cut a strip of 16x4 cm from white cardboard, draw a line along the middle with a pencil dividing this strip in half, and separate 1 cm from each edge. Apply glue to the area as shown in the photo:
Starting from the red stripe, focusing on the drawn line, stick the colored stripes in a rainbow sequence:
Now we glue the cotton pads:
I have 4 pieces arranged very well:
To make the cloud bigger, we’ll make a second row of disks, but one less:
Done. We turn our craft over and glue a loop of thread:
We also cover the cardboard strip with cotton pads:
Our craft is ready! You can hang it on the wall and admire it on a rainy day, you can decorate a window, and the breeze that comes through the window will play with colored stripes, you can take it with you outside and determine the strength and direction of the wind, you can blow on the stripes yourself one by one.
This is how my four-year-old students completed this task:
Feoktistova Yulia Rysaeva Elmira
Rysaeva Elmira Faizovna, Feoktistova Yulia Sergeevna
Supervisor: Korol Yulia Nikolaevna
Project theme: “Creating a rainbow at home.”
Purpose of the study: determine what the connection is between rain, sun and the appearance of a rainbow, and whether it is possible to get a rainbow at home.
Research objectives:
- How does a rainbow appear?
- When does a rainbow appear?
- Is it possible to get a rainbow at home?
Hypotheses put forward:
- Suppose a rainbow appears in sunny weather during rain, when the sun's rays pass through the raindrops.
- Suppose that a rainbow can be obtained by replacing the sun's rays with an artificial light source.
Basic methods: literature study, observation, experiment.
Experience “Creating a rainbow at home”
To make sure that White color consists of seven colors and a rainbow can be obtained artificially, we conducted experience. We needed a flashlight, a water container, a flat mirror, white cardboard and water.
Progress of the experiment: Filled the tray with water , We placed a mirror at an angle and directed the light of a flashlight onto the part of the mirror immersed in water. To catch the reflected (or refracted) rays, they placed cardboard in front of the mirror. As a result, a reflection of all the colors of the rainbow appeared on the cardboard; we were able to get a rainbow in “home” conditions.
As a result of the work done, we convinced that the prism can turn a white beam into a seven-color, rainbow one. We met with ways to get a rainbow at home
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Preview:
Department of Education of the Municipal District Administration
Kuyurgazinsky district of the Republic of Bashkortostan
Research work
How to create a rainbow at home
Completed by 4b grade students
MBOU Secondary School No. 2 s. Ermolaevo
Kuyurgazinsky district
Republic of Bashkortostan
Feoktistova Yulia
Rysaeva Elmira
Head Korol Yu.N.
Ermolaevo - 2015
1. Introduction
2. Why does a rainbow appear?
3.How a rainbow appears
4. When it appears
5. Experience “Creating a rainbow at home”
Everyone likes the rainbow - both children and adults. Its colorful tints attract the eye, but its value is not limited to aesthetics alone: it is also a great way to interest a child in science and turn knowledge of the world into an exciting game! To do this, we invite parents to conduct several experiments with their children and get a real rainbow right at home.
In Newton's footsteps
In 1672, Isaac Newton proved that the ordinary white color is a mixture of rays of different colors. “I darkened my room,” he wrote, “and made a very small hole in the shutter to let in the sunlight.” In the path of the sun's ray, the scientist placed a special triangular piece of glass - a prism. On the opposite wall he saw a multi-colored strip, which he later called a spectrum. Newton explained this by saying that the prism decomposed White light into its constituent colors. Then he placed another prism in the path of the multi-colored beam. With this, the scientist reassembled all the colors into one ordinary ray of sunlight.
To repeat the experiment of a scientist, you don’t necessarily need a prism - you can use what you have at hand. In good weather, place a glass of water on a table near a window. sunny side premises. Place a sheet of plain paper on the floor near the window so that the sun's rays fall on it. Wet the window hot water. Then change the position of the glass and the sheet of paper until a small rainbow appears on the paper.
Rainbow from the looking glass
The experiment can also be carried out both in sunny and cloudy weather. To carry it out, you need a shallow bowl of water, a small mirror, a flashlight (if there is no sun outside the window) and a sheet of white paper. Immerse the mirror in water, and position the bowl itself so that the sun's rays fall on it (or point a flashlight at the mirror). If necessary, change the angle of objects. In water, light should refract and break into colors, so that a sheet of white paper can “catch” a small rainbow.
Chemical rainbow
Everyone knows that soap bubbles are rainbow-colored. The thickness of the walls of a soap bubble varies non-uniformly, constantly moving, so its color is constantly changing. For example, at a thickness of 230 nm the bubble is colored Orange color, at 200 nm - green, at 170 nm - blue. When, due to water evaporation, the thickness of the wall of a soap bubble becomes less than the wavelength of visible light, the bubble stops shimmering with rainbow colors and becomes almost invisible before bursting - this happens when the wall thickness is approximately 20-30 nm.
The same thing happens with gasoline. This substance does not mix with water, so when it ends up in a puddle on the road, it spreads over its surface and forms a thin film that creates beautiful rainbow stains. We owe this miracle to the so-called interference - or, more simply, the effect of light refraction.
Musical rainbow
Interference causes rainbow tints on the surface of compact discs. By the way, this is one of the most simple ways“harvesting” rainbows at home. In the absence of sun it will do desk lamp, and a flashlight, but in this case the rainbow turns out less bright. Simply by changing the angle of the CD, you can get a rainbow stripe, a circular rainbow, and restless rainbow bunnies on a wall or any other surface.
Besides, what is not a good reason to teach your child the basics of musical literacy? After all, Newton initially distinguished only five colors in the rainbow (red, yellow, green, blue and violet), but then he added two more - orange and violet. Thus, the scientist wanted to create a correspondence between the number of colors in the spectrum and the number of notes in the musical scale.
Projector night light
If a temporary solution is not enough for you, you can have a rainbow at home “for real” - for example, using such a miniature projector. It projects a rainbow onto the walls and ceiling - even at night, even on a cloudy day, when invigorating colors are so lacking... The projector can operate in two modes: all colors together, or each separately. In anticipation New Year's holidays This is probably a good gift idea for a child or just a creative person.
Window hanging
Another option for a “rainbow without worries” (which, however, can only be enjoyed during daylight hours, and only in sunny weather) is the so-called rainbow disk, made using modern laser technologies. A glass prism measuring 10 centimeters in diameter is enclosed in a chrome plastic case. It is attached to the window using a suction cup and, transforming sunlight, projects it onto the walls, floor and ceiling of the room. There are 48 color lines in total: red, orange, yellow, green, blue, indigo, purple and everything in between.
Flip book with 3D effect
In the last few years, books with interesting and unusual effects have begun to appear - for example, “flip books” with running pictures. Many of us are familiar with this technology from our own childhood: we drew pictures in the margins of a notebook, and then brought them to life by quickly flipping through the pages. A book based on the principle of this fun was created by Japanese designer Masashi Kawamura. If you quickly flip through it, you can see a voluminous rainbow!
If you wish, you can make a similar handmade rainbow with your own hands, and at the same time clearly demonstrate the animation effect to your child. To do this, you need to print on paper or draw squares of rainbow colors on each page of your notebook. In total you need 30-40 sheets. It is important to take into account that on one side of each page you need to draw them in the usual sequence, and on the other - in the reverse order, otherwise you will not get a rainbow.
Rainbow you can touch
And another fun way to get a rainbow that will greatly decorate anyone modern interior, without taking up a single centimeter of space and filling it with rainbow radiance. To do this, Mexican designer Gabriel Dawe suggests using skillfully stretched sewing threads. Of course, you will have to tinker with such an installation for an hour or two, but the result is worth it. It is not for nothing that the artist’s works have been a huge success in many countries, including the USA, Belgium, Canada and the UK.
Anastasia Panfilova
Lesson summary “Rainbow at home”
Rainbow at home.
Purpose of the study: define what it is rainbow how is it formed, and is it possible to obtain rainbow at home.
Research objectives:
1. Find out where it comes from rainbow.
2. Determine what they are rainbows.
3. Try to get rainbow at home.
Progress of the lesson:
1. What is rainbow?
Rainbow- modified word "raiduga", or God's arc.
(According to V. Dahl's dictionary)
Rainbow- a multi-colored arc-shaped stripe on the firmament,
formed due to the refraction of sunlight in raindrops.
(Explanatory dictionary of the Russian language by Ozhegova S.I.)
Both ancient people and ancient scientists tried to unravel the cause of its occurrence. 2. How is it formed? rainbow?
Sunlight appears white to us. But in fact it consists of several colors. It happens that when it rains, the sun comes out, and then the sunlight passes through the water droplets and "disintegrates" for several colors. There are always seven of these colors, and they are arranged in strict order. Red, orange, yellow, green, blue, indigo, violet. So it turns out multi-colored rainbow. An object that can split a ray of light into its components is called "prism". The resulting colors create a strip of colored lines called "range". Rainbow and there is a large spectrum, or band of colored lines, resulting from the decay of a ray of light passing through raindrops. IN in this case raindrops act as a prism.
Rainbow appears, only when the sun peeked out from behind the clouds and only in the direction opposite to the sun.
Rainbow appears when the sun illuminates the curtain of rain. You need to be strictly between the sun (it should be at the back) and rain (he should be in front of you). Otherwise can't see the rainbow!
The sun, our eyes and center rainbows must be on the same line! If the sun is high in the sky, then it is impossible to draw such a straight line. That's why rainbow can only be observed early in the morning or late in the evening. Rainbow appears under condition that the angular height of the sun above the horizon does not exceed 42 degrees.
Does it happen? rainbow without rain?
It turns out that such a miracle also happens. In the air in winter "float" ice crystals. They can also divide white into seven colors rainbows, That's why rainbow can be observed even in winter.
How to do rainbow at home?
Experiment No. 1.
Target: receiving rainbows at home using a CD.
Equipment: CD, light source - sunbeam.
Description of the experiment: A computer disk caught a ray of sunlight and directed it to the wall and ceiling of the room. It turned out rainbow.
Experiment No. 2.
Target: receiving rainbows at home using napkins, water and markers.
Equipment: a plate of water, napkins and markers.
On a napkin with felt-tip pens different colors draw circles. Pour enough water into the plate to cover the bottom. Place a napkin in the water and watch the miracle!
Experiment No. 3.
Target: receiving rainbows at home with candy and water.
Equipment: plate, water, MMDEMS
Put the candies in the circle in order rainbow colors, pour into the middle of the plate plain water and enjoy the process. After a few seconds, the child clearly understands what the dye is.
Experiment No. 4.
Target: receiving rainbows at home using a mirror and a flashlight.
Equipment: a plate filled with water, white cardboard, a mirror, a light source - a flashlight.
Description of the experiment: We took a plate, filled it with water, and lowered the mirror at an angle. Then they directed the light of the flashlight onto the part of the mirror immersed in water. When we placed white cardboard in front of a mirror to catch the reflected rays, we saw a reflection on the cardboard rainbows.
Publications on the topic:
Exercising at home “Keep your finger on the pulse and take care of your child’s health” Having decided to introduce your child to sports, the first question that arises is: do the training yourself at home or give it away.
Research project “Growing crystals at home” Research project: “Growing crystals at home” Educator: Tatyana Viktorovna Chernysheva, Orenburg region.
Summary of the parent meeting “Health-saving technologies and the possibility of their use at home” The goal is to build emotional and trusting relationships that contribute to full development healthy child and positive self-realization.
Consultation “Observing nature at home” CONSULTATION FOR PARENTS “OBSERVING NATURE AT HOME” The wonderful teacher Vasily Aleksandrovich Sukhomlinsky wrote: “The man was and.
Logorhythmics for preschoolers at home Logorhythmics will allow you to avoid speech disorders. Adults who are far from pedagogy are usually touched by the child’s imperfect speech and the replacement of complex ones.
What could be more beautiful and fantastic than a rainbow? Only a rainbow created with my own hands. The easiest way to make a rainbow is to shine light through a prism. But you don’t always have a prism at hand, and you really want to experiment with a rainbow.
There are several ways to make a rainbow at home using improvised materials, let's look at a few of them.
Rainbow from the disk
This is a very simple way to get a rainbow from an item that is in almost every home today - a CD. The disc will fit any CD\DVD\Blueray; just reflect the sunlight from it and a beautiful rainbow will play on a white wall.
Rainbow from the water
To do this, you need to shine light through water. For example, you can place a glass of water on the windowsill on a sunny day and the light passing through the water will create a rainbow. If this doesn’t work, you can take a mirror and put it in a glass of water and try to reflect the sunlight with it.
You can also take a flat, shallow container and place a mirror in it at an angle so that one half is above the water and reflect sunlight onto the white surface. The rainbow will appear immediately. The larger the container with water and the mirror, the larger the rainbow.
If the sky is cloudy and the sun is not shining at all, you can make a rainbow using the same methods using a flashlight. But such a rainbow will not be so bright, so you will have to close the curtains tightly and then start experimenting.
Well, if the sun is shining brightly, there is another surefire way to make a rainbow. But for this you will have to go outside and find a hose connected to a water tap. Now all that remains is to pinch the end of the hose so that the water comes out of it as a fine spray, and direct it upward into the sun. A rainbow will sparkle in the splashes of water.