How to make a cardboard thermometer with your own hands: a step by step description. Do it yourself: do-it-yourself electronic thermometer Print outdoor thermometer

Creating a thermometer at home will take some time, but the procedure itself is quite simple and straightforward. Assemble a thermometer with your own hands and test it to make sure it gives the correct reading. If the thermometer is working properly, calibrate it before using it to measure temperature.

Steps

Part 1

creation of a thermometer

Prepare the measuring solution. Fill the measuring container with water and medical alcohol in a ratio of 1:1. For color, add 4-8 drops of food coloring to the solution and gently stir the resulting mixture.
- Note that the addition of food coloring does not change the response of the solution to temperature fluctuations. The dye only contributes to the removal of instrument readings, facilitating the observation of the liquid column in the thermometer tube.
- It is possible not to add alcohol by using only water, but a mixture of equal parts of water and rubbing alcohol reacts faster to temperature changes than water.
- When determining the required volume of solution, be guided by the volume of the bottle you use. You will need enough liquid to completely fill the bottle, plus a little more.
Pour the measuring solution into a clean bottle. Fill the bottle with solution to the brim. At the end, you can use a pipette, adding the last drops of the colored liquid until it fills the bottle to the very brim.
- You can use both glass and plastic bottles.
- Try not to spill the solution out of the bottle.
- You can create a thermometer without filling the bottle with measuring liquid to the very brim. However, in this case, the design of the device must be such that, during expansion, the solution enters the measuring tube, and does not fill the space of the bottle that remains free. However, filling the bottle all the way will ensure that the liquid reacts more quickly to temperature changes.
Insert a thin glass or plastic tube into the neck of the bottle and fix it. Do this carefully and slowly so that the liquid does not spill over the rim of the bottle. Leave at least 10 cm (4 inches) of tubing on top of the bottle, making sure the bottom end of the tubing does not reach the bottom of the container. Secure the tube with molding clay, covering the neck of the bottle with it.
- The neck of the bottle should be hermetically sealed with clay. In this case, it is best if there is no air left in the bottle, that is, it will be completely filled with liquid.
- If you don't have molding clay, use melted wax or plasticine.
- Hermetic bottle cap plays big role. The tight cap prevents the solution from flowing out of the bottle when heated, resulting in all the excess of the expanded liquid entering the tube.
Attach a strip of white thick paper to the side of the tube. Place paper with back side tube, attaching it with adhesive tape.
- A paper strip is not required, but it will make it easier for you to see the level of liquid in the tube. Also, if you're going to later calibrate your thermometer to measure temperature accurately, you can mark the paper strip for specific temperatures.
Pour the measuring solution into the tube. Carefully add a few drops of the solution to the top of the tube using a pipette. Make sure that the liquid rises in the tube to a height of 5 cm (2 inches) above the neck of the bottle.
- Adding a few drops of solution to the tube will make it easier to see the level as it changes as the temperature rises or falls.
Add one drop to the tube vegetable oil. Do this with all caution with a pipette. And remember - just one drop.
- Vegetable oil will not mix with the solution, remaining on its surface in the tube.
- Adding vegetable oil will prevent the measurement mixture from evaporating. As a result, the thermometer will last much longer, giving out accurate results after calibration.
Examine the manufactured thermometer. After assembling the instrument, check it several times before using it for measurements to make sure that you did not make mistakes in its manufacture.
- Feel the bottle. Make sure no liquid leaks out of it.
- Examine the layer of clay on the neck of the bottle and make sure it seals the container tightly.
- Check the tube and the paper attached to it, making sure they are firmly attached and will not move during operation of the thermometer.
Part 2
thermometer test
1. Place the thermometer in a container of ice water. Fill a small bowl cold water and put some ice in it. Wait for the water to cool, then carefully place the thermometer bottle into this bowl. Make sure the liquid level in the thermometer tube is clearly visible.
  - When placed in cold water the liquid level in the thermometer tube should drop.
  - Matter is made up of atoms and molecules that are in constant motion. The energy of this movement is called kinetic energy. As the temperature decreases, the movement of particles of matter slows down, and their kinetic energy decreases.
  - When using a thermometer, the temperature, that is, the kinetic energy of the particles of the medium, is transferred to the particles of the liquid used in the device. In other words, the measuring liquid of the thermometer acquires a temperature environment, and as a result you can determine this temperature.
  - When cooling, the particles of the measuring liquid slow down and the distance between them decreases. As a result, the solution contracts and the liquid level in the thermometer tube drops.
2. Place the thermometer in a container of hot water. Dial hot water from the tap or heat it on the stove without boiling. Carefully lower the thermometer into hot water, observing the liquid level in its tube.
  - Please note that you should wait until the liquid in the thermometer bottle warms up to room temperature after you have taken the bottle out ice water. Do not put it in hot water immediately after taking it out of ice water, because with such a sharp temperature drop, the bottle may crack, especially if it is glass.
  - When the measuring liquid is heated, it will rise up in the thermometer tube.
  - As already noted, particles of matter accelerate their motion when heated. When heat water is transferred to the measuring solution, the particles of the latter accelerate their movement, and the average distance between them increases. This causes the liquid to expand and raise its level in the thermometer tube.
3. Test the thermometer in other environments. Test it in different temperature environments. Observe how the level of measuring liquid in the tube drops when low temperatures and rises at high.
  - Note how the liquid level in the thermometer tube changes when it is placed in a cold or hot environment.
  - You can place the thermometer in the refrigerator, on a lighted sunlight window sill, house threshold on a warm and cold day, shady place in the garden, cellar, garage, in the attic of the house.

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 do it, but it’s better if parents put their hands on the creation of the training manual - a pleasant evening in the family circle, plus more neat 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 out the silhouette (I just marked the roof of the house) and immediately drew the vertical axis of the 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: 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

Children aged 5 to 8 can already be told about different dimensions. It is during this period that the child develops the concept of such a phenomenon as temperature, and he can already be introduced to various devices and measuring instruments, for example, a thermometer, scales, watches, a protractor and a ruler. At the same time, the child remembers not only how to measure, but also in what units it needs to be done. At this age, children can already consciously use certain concepts. In order for the child to better understand how this or that device works, parents can make a toy model from improvised means. So, how to make a cardboard thermometer?

What is it for

A similar paper product can be used both in the classroom and at home. A homemade cardboard thermometer will not break even if a child drops it. In addition, such a model of a measuring device will help teach children to determine the temperature and solve various problems. Very often, cardboard thermometers are used to conduct classes on keeping a weather calendar. In addition, a paper measuring device can be hung on the wall in the children's room. This will help the child better understand what zero, negative and positive numbers are. As a result, it will be easier for your child to establish a connection between changes in the weather outside the window and the readings of the measuring device.

What is needed for this

Making a cardboard thermometer with your own hands is not so difficult. This does not require much experience. So, to make a paper measuring device, you will need:

Simple pencil.

Bright marker or ballpoint pen.

Ruler.

A sewing needle with a fairly large eye.

Thick threads of white and red.

Half-cardboard or light-colored cardboard.

Scissors.

It is better to prepare all the components in advance so that you don’t have to look for anything later.

We make a blank

After that, make a markup on a strip of cardboard, which will be a scale: from "minus" 35 to "plus" 35 ° C. AT without fail circle all the numbers and lines with a bright felt-tip pen or ballpoint pen. Take cardboard and mark with a simple pencil a strip 5 centimeters wide and 12 centimeters long. Cut it out carefully.

To make a neater DIY cardboard thermometer, you can use a printer. To do this, simply draw a scale with all the marks using special programs. Select all numbers bright color to make them more visible. Print the finished scale on the printer. It is worth noting that such a model of the measuring device will look more aesthetically pleasing.

Create a thermometer

In order for the thermometer to work and show the temperature, it is necessary to create a column of mercury. To do this, take a red and white thread. Tie them together. Then take sewing needle and thread a red thread into it. Pierce the thermometer scale at the very top. With reverse side cardboard, pull the end of the thread. Then thread the needle white color and pierce the scale at the very bottom. On the reverse side of your measuring device, connect the ends of the threads by making a strong knot. As a result, the thread can be moved.

Paper thermometer games

You made a thermometer out of paper with your own hands and now you don’t know what to do with it next. There are many games that allow you to introduce the child to the device. First, explain to your child how a thermometer works. Move the threads so that the red becomes above zero. After that, invite the child to reason about what happens in nature at this temperature. For example, the sun is shining, people are wearing light clothes, it is very hot. When the red thread is below zero, then tell the child what is happening with nature. For example, water freezes, everything is covered with ice, snow falls, and so on.

How to make a medical thermometer out of cardboard

All children love to play role-playing games. For the "hospital" you can also make your own cardboard thermometer. To do this, you will need: paper, pencil, pen or felt-tip pen, thread and needle.

First, take a sheet of cardboard and draw the outlines of the future thermometer on it. Carefully cut out the blank and draw a scale on it. It should be the same as on a real thermometer.

Take two threads. One should be red and the other white. Connect them. Thread a red thread into the lowest mark of the scale, and a white thread into the top one. Connect the tips to the back of the thermometer and cut off any excess.

The principle of operation of such a model is quite simple. The thread can be moved. Red color shows body temperature. By moving the thread, you can change the indicator.

How to play with a cardboard medical thermometer

After you complete the manufacture of a cardboard thermometer, first of all explain to your child what it is for, how to use the measuring device correctly. Also tell him about the body temperature of a healthy and sick person. Teach your child how to use the thermometer correctly. Explain to him what it means to increase and low temperature body. Perhaps in the future your child will want to become a doctor thanks to such a game. Teach your child how to use the measuring device correctly. At the same time, you can tell how dangerous a real thermometer is.

Most the best way learning is the joint production of a thermometer. In the process, you can tell your child what it is, what it is for, how to use it correctly, and also in what units the temperature is measured.

Finally

As you can see, everyone can make a cardboard thermometer with their own hands. The whole process takes a little time. As a result, it turns out perfect fit for good example and education of children. In addition, the manufacture of a thermometer requires a minimum of costs. So, now you know how to make a cardboard thermometer. But this is not enough. You also need to know how to use it correctly. It should be noted that such paper models measuring instruments contribute to the mental development of children. Be sure to involve your child in making a cardboard thermometer. After all, do-it-yourself crafts are more popular with children. In addition, it encourages them to be more careful about things.

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, ambient temperature, comparisons, 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! I!" 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.

Moving 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

Pasting front side cardboard adhesive film

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 thread it through the holes and tie it on the 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 saw the octopus first 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 stuff the pyramid with, for example, I scored that it took a long time to save up trimmings 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

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.