How to make a thermometer out of cardboard. How to make a cardboard thermometer with your own hands: a step-by-step description of a cardboard and thread thermometer
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Technology
3rd grade
Making a thermometer
What is the name of the device that
we determine the temperature?
Thermometer - a device for measuring temperature.
Look at the scale of the thermometer.
What is in the middle of the scale?
Zero marks the boundary between degrees
heat and cold.
S.Kaputikyan
Mom bought a thermometer And attached it to the wall. - Mommy, who is sick? At the neighbors? Behind the wall? - What are you, my dear Alik, There are no sick people in our house, This is a room thermometer - He remembers heat and cold! - So the room is sick, Maybe she's coughing? The temperature has risen, Is that why he looks so gloomy? I will visit the sick I'll let the sun in the window!
Why such a difference in values?
Remember: what is the temperature in winter? What - in the summer?
Our country is huge. In one place in summer the temperature can be only +20⁰, and in another +40⁰.
In our city in winter there are about 15-20 degrees of frost, and in cities located to the north - up to -50.
Those who produce thermometers do not know which city their product will end up in. Therefore, the scale is made such that the thermometer can be used
throughout the entire country.
If the temperature drops, the liquid
in the thermometer falls, if it becomes warmer - the liquid rises.
Materials for the lesson:
- white and red threads;
- simple pencil;
- colored cardboard;
- template - scale;
- ruler 30cm;
- scissors;
- glue;
- needle.
template - scale.
2. Take the cardboard of your loved one
colors, draw a rectangle
10 cm wide and 22 cm long.
Cut out along the contour.
3. Gently
paste the template
in the center of the cardboard
rectangle,
it will increase
its service life.
4. Then we need to make "mercury".
1. Take two threads - red and white - each a little more than 2 thermometers long.
2. Connect the threads as shown in the picture:
3. Pull on the threads.
4. Do it at the top
and the bottom of the column
hole thermometer
(places are marked with circles)
and put the threads in there:
red - down
white - up. Pull the threads and tie them
knot with reverse
sides of the thermometer
cut off excess ends.
The period of senior preschool and junior school age – auspicious time to form an idea about the measurement. Children 5 - 8 years old learn about the appointment of various measuring instruments and devices (ruler, protractor, watch, scales, thermometer), actively master the techniques of conducting various measurements, consciously use concepts denoting units of measurement. Sometimes it is difficult to explain the principle of operation of a particular device, therefore, models come to the aid of parents and teachers that help the child understand how the measuring device works.
We will tell you step by step how to make a thermometer out of cardboard. Such a paper thermometer can be used in familiarization classes with others in kindergarten or in the lessons of mathematics and natural history in primary school schools while running . Also, a do-it-yourself cardboard thermometer can be hung on the wall in the children's room. Thanks to the model, it will be easier for the child to understand what zero is, what negative and positive numbers mean, to establish a connection between the readings of the device and changes in nature or in bodily sensations.
We will need:
- light cardboard or semi-cardboard;
- thick threads of red and white color;
- a needle with a large eye;
- ruler,
- automatic pen or bright felt-tip pen;
- pencil.
Completing of the work:
After explaining to the child how a device that measures air temperature works, you can play with him a game with the movement of a two-color thread “What happens?” The red indicator is at a minus mark - the child can list what is happening in nature: “It’s cold outside, snowing, puddles covered with ice, people put on warm jackets, hats, mittens, etc. If the indicator is at a positive temperature, the child remembers what happens in nature when it is warm.
For children's "House" and "Hospital" you can make a medical thermometer out of cardboard with your own hands.
How to make a thermometer out of cardboard?
Similar models that promote mental development child, it is very good to do, involving the children themselves in the manufacture. crafts made with my own hands, especially delight little craftsmen and encourage them to treat the objective world more responsibly and carefully.
As a rule, in the second grade, the teacher asks to make a do-it-yourself cardboard thermometer for work in nature studies lessons. A child can also make it, but it is better if parents put their hands on the creation of the training manual - pleasant evening in the family circle, plus more accurate work at the exit.
To make a thermometer out of cardboard with your own hands, you will need:
thick cardboard;
liner or thin pen;
simple pencil;
round hat elastic or white lace;
felt-tip pens, incl. red marker;
button;
scissors or cutting knife;
markers.
How to make a cardboard thermometer for school: a master class
We decide on the shape of our future cardboard thermometer. Of course, you can leave it just a rectangle, but it is much more interesting if it is a house, a cat or a mushroom. We decided, sketched a silhouette (I just marked the roof of the house) and immediately carried out vertical axis future thermometer.
Perpendicular to the axis of this house under the ruler, with a step of 1 mm, we draw a thermometer scale - as a rule, the teacher specifies the desired range of the scale. I have it from -40 to + 40 ° C. We draw the lines of the scale with a liner or a thin pen, make sure that the lines do not smear (maybe you should choose not smooth, but rough cardboard, there is practically no smearing on it).
We mark zero, we indicate every 10 degrees above and below zero. At the top and bottom of the scale, mark °C.
We cut out a thermometer layout figure from cardboard according to the silhouette.
Slightly above and slightly below the scale, we pierce neat round holes with an awl: an elastic band will go into them.
We take a white round thin lace or a rubber band, its length is the distance between the holes, multiplied by two, plus 3-4 cm for tying. We paint exactly half of this lace with a felt-tip pen in red.
Gently from the front of the thermometer we thread the ends of the elastic into the holes, bringing the tails to the wrong side.
We tie the ends together, while tying a button into a knot. This is necessary in order to make it faster and more convenient for the child to move the thermometer column. But you can do without a button completely.
On the front side, we paint our do-it-yourself cardboard thermometer as the child wants. You can also sign our work.
The cardboard thermometer is ready - you can take it to school and enjoy working with it in the classroom.
Eva Casio especially for the site Master classes in needlework
One day, the Kids start asking about the clock, thermometer, etc. We explain. But parents often face that it is sometimes difficult to explain how it all works.
The scale on various objects and devices can help in studying with the child parts and the whole, division, ordinal and backward counting.
Some common scales
Temperature scales different countries and times (Celsius, Fahrenheit, Kelvin)
Richter scale of earthquake intensity
Beaufort wind speed scale
Mohs scale - a scale for the hardness of minerals
Color palette, Atlas of colors
What can be used to study at home? And at the same time teach the child to deal with these things:
Measuring tape or tape measure
Thermometer
electronic scales
Tape measure- you can study ordinal and reverse counting, parts and whole, you can measure something, along a straight line, curve or circle.
Ruler- again, you can study ordinal and reverse counting, parts and the whole, you can in a straight line, also draw a straight line.
Thermometer- study of ordinal, reverse counting, positive and negative numbers, temperature environment, comparison, thermometer as a device.
Clock- the study of time, the division of the circle into parts, etc.
electronic scales- they also have a measuring scale, of course, and a study of weight.
For easy understanding and explanation can do visual models of watches, scales, thermometer.
Thermometer.
My son Semyon (4 years old) has long been interested in the outdoor thermometer that hangs outside the window. If you mention in his presence: “How many degrees are today?”, He shouts: “Me! I AM! I AM!" And he runs ahead in order to be the first to have time to look.
For a closer study of the thermometer, I remembered the experience of my school childhood. We made a thermometer out of cardboard. Of course, I decided to bring the idea with a thermometer to life. Here is the joint result of our work.
Our thermometer! I set the temperature. Yes, we have zero. "Mom, let's go make a snowman!"
I think my son will play and study it often. After all, Syoma is a researcher of various phenomena.
Son liked it very much. Actively participated in the production and was happy with the result. I stuck it on the window not far from the usual thermometer, and around it there were stickers. “Mom, look how beautiful!”
Why is a thermometer good for studying?
Easy to explain the concept of zero
Account learning
Ordinal and countdown
The concept of positive and negative numbers
Tens (5,10,15, etc.)
Small divisions without numbers what they mean (there are on the clock, ruler, etc.)
Temperature Freezing-melting point of water
Correlation of concepts scale with numbers - physical sensations of the body
Another mother and son played with a new thermometer in such a game.
Syoma took the finished thermometer in his hands and began to move the rope. I voice the movement of the red rope. Even when drawing the scale on the thermometer, she immediately explained that below zero it is cold, above it is warm.
Movement up: Warmer - the snow is melting, very warm - they took off their fur coat, even warmer - grass grows, leaves appear, birds have flown in, insects have appeared. It's getting hot, we put on very light clothes, let's go swimming in the river. Etc.
Downward movement: It was hot, now warm. The wind blew cool, the rain started cold. Oh, it's getting colder, the puddles are frozen, it's snowing, b-b-br. Where is my coat? Let's go skiing! Quite cold, where is the warm stove!
And I say everything, depending on the movement of the thread up and down. The child remembers the connection between the position of the border of the red-white thread and my words that describe my feelings. Semyon was very impressed. Here's a rope!
In this article, I told you how the scales on things and devices can be used in development games. The first was a thermometer.
How to create? Simple and easy!
And what a useful thing.
Tools and materials:
thick cardboard,Scissors,adhesive film,thick threads,markers,Ruler,Pen,Hole puncher
We cut out the shape of the future thermometer from thick cardboard.
Draw a vertical line in the middle. We divide it in half - this is zero.
Mark the divisions using a real thermometer as a reference.
Numbers. I wrote the numbers on one side, and the son on the other.
We draw pictures to decorate the thermometer
We glue the front side of the cardboard with adhesive tape
We make a hole punch at the top and bottom on the vertical line of the hole
Cut off 2 threads: red and white. We tie them tightly. We pass through holes and connect with reverse side too.
The thermometer is ready! Sets the temperature.
My son stuck it on the window, closer to the real thermometer. Happinnes exists!!!
We showed you how to make a play thermometer. We hope everything works out for you.
I first saw the octopus in the magazine "Mom and Baby" (No. 6, 2006), and then on one site on the Internet, the author of the "developer" is Irina Voskresenskaya (Thank you very much for sharing your experience!). Really wanted such an octopus? so I decided to quickly sew it, everything about everything took me about 2.5 hours. and this is what i got
GIANT PYRAMID
In order to make the base for the pyramid, you need to take two triangles and a circle for the bottom of the pyramid. The base of the triangles is 60 cm, the sides are 82 cm, the diameter of the circle is 39 cm.
We sew the triangles on both sides from the inside out, then sew the bottom, leaving a 10 cm slot in order to push the batting through this slot (or what you will fill the pyramid with, for example, I scored that it was a long time to save up scraps and put them there)
We cut strips for future rings into a pyramid. Stripes of different lengths, the width can be the same, it can be different, who wants what kind of creativity. I have the same width everywhere - 25 cm.
The length of 1 strip I have is 135 cm,
Length 2 strips - 125 cm
Length 3 strips - 115 cm
Length 4 strips - 102 cm
Length 5 strips - 85 cm
Length 6 strips - 65 cm
Length 7 strips - 45 cm
We sew their sides and one end, turning them into long bags (sausages)
Then, we turn it on the front side and sew the stitched end again, retreating 2-3 centimeters in this way, we score (diaper bags, paralon, halafiber, etc.) and sew to the end
A thermometer is a necessary tool with which many measure the temperature of the air in the house, water, and also the body. Available for sale various models devices that differ in appearance, method of measurement (mercury, infrared, electronic), as well as cost.
But if you wish, you can make a thermometer from improvised materials with your own hands. The process will require patience and endurance, you will also need ingenuity.
liquid thermometer
Types of thermometers that you can make yourself
A handmade device will last a longer period.
But before proceeding with the manufacture, it is worth considering the types of thermometers:
Model of infrared non-contact thermometer
You can make your own different kinds thermometers - liquid, with mechanical principle works that have metal spirals or ribbons, electronic or digital.
by the most simple option there will be a cardboard product, it is quite simple to make it.
Electronic and digital devices require experience, knowledge of electronics. For their manufacture can be used various schemes that need to be properly connected. Such devices are often used for freezers.
How to make a thermometer
The device can be made from improvised materials that are available at home.
From a plastic bottle
A homemade thermometer from a plastic bottle makes it easy, most importantly, to prepare for the process. To get started you need materials:
- plastic bottle 20-25 centimeters high;
- tap water;
- medical alcohol;
- food coloring;
- measuring capacity;
- pipette;
- a thin tube made of glass or plastic;
- vegetable oil;
- plasticine or molding clay;
- ruler;
- marker with a thin rod;
- white paper with a dense structure;
- scotch;
- cold and hot water;
- a conventional thermometer, which will be required for calibration.
Homemade thermometer
Manufacturing scheme homemade device looks like that:
- into container ( plastic bottle) you should pour water and medical alcohol in proportions 1:1.
- Then add a few drops of food coloring to the solution. It should be added with a pipette.
- The dye is required for easy detection of temperature changes.
- It is important that the solution fills the bottle to the very brim.
- After that, a plastic or glass tube is inserted into the bottle. It must be inserted carefully so that water does not spill out.
- Lift the top of the straw over the neck so that it protrudes about 10 centimeters, the other end should not reach the bottom of the bottle.
- We install the tube correctly and fix it with molding clay or plasticine.
- The closure must be tight so that liquid cannot leak out of the container.
- On the side of the tube, attach a strip of white thick paper. It must be placed on the back of the tube and attached with adhesive tape.
- Paper is required to facilitate control of the liquid level in the tube. Also in the future it will be possible to put labels on it.
- The measuring solution must also be added to the tube, it should be added using a pipette.
- It is important to ensure that the liquid in the tube rises to a height of five centimeters above the neck of the bottle.
- Next, you need to add a drop to the tube vegetable oil. This must be done carefully, it is better to use a pipette.
- Vegetable oil will prevent the measuring liquid from evaporating and increase the life of your homemade thermometer.
Trial
After the complete assembly of the thermometer, it must be checked. To do this, you need to alternately lower it into bowls with cold and hot water. When placed in cold water the liquid level in the tube should decrease, in the hot - rise. If this happens, this means that the device is assembled correctly.
You can calibrate the product using a conventional thermometer. To do this, it should be brought to the paper, leaned slightly and marked with a marker. Calibration will help you use homemade device for measuring air or liquid temperature.
Difficult option - electronic thermometer
Device diagram
Deciphering the indicators of the scheme
If you are fond of technology, then you can make an electronic thermometer. But for it you will need to purchase special parts. For self-manufacturing a simple one will do device with the following features:
- temperature range from 0 to 99 degrees Celsius;
- input power level 4.5-5V DC;
- consumption current indicator - 20 mA.
Electronic thermometer board (wiring diagram).
To make an electronic device for measuring temperature, you will need to purchase a special board. If you want the readings to be clear and visible from afar, then it is better to use large and bright LED indicators. Correct connection and connection external elements to the board is shown in the figure.
Board with external elements
If the thermometer will be used to measure the temperature outside, it must be mounted in a special box with network adapter inside the apartment. The temperature sensor itself is connected using a flexible cable.
Flex circuit board
Advantages and disadvantages
The advantages of a self-made device include:
- simple manufacturing;
- can be made from cheap improvised materials, which is cost-effective;
- no aggressive substances are required. As a measurement, a liquid of water and alcohol can be used;
- easy application;
- long service life.
But there are several disadvantages:
- electronic versions have complex scheme manufacturing;
- for products with an electronic or digital device, it is required to purchase special boards, circuits;
- sometimes products may show inaccurate measurements.
Homemade thermometers are beautiful way in order to save money on the purchase of a new device. A do-it-yourself device will last much longer than cheap measuring devices.