When Vladik and I started doing chemicals, our favorite substances for experiments were soda and vinegar. We used up a lot of soda,

Today, for convenience, I have collected in one article several simple experiments with soda, with which your little scientist can easily begin to get acquainted with chemistry.

By the way, it wouldn’t hurt to explain to your child how they differ chemical transformations from physical ones.

Chemistry studies such transformations when, as a result of the interaction of substances, something new is obtained. For example, a nail remained in water and after some time a new substance formed - rust. A physical experience will occur when transformations occur with one substance. For example, they put ice in a glass, then the ice melted - water was formed, and if the water was heated, there would be water vapor. Ice, water and steam are different states of the same substance - water. I think this will be clear.

Let's return to our soda. Chemists call it sodium bicarbonate or sodium bicarbonate, but you decide for yourself what to call this substance when conducting an experiment with a child.

Experience 1

Add a little vinegar to half a glass of water, and then pour half a teaspoon of soda into the glass. The solution immediately bubbles, as if boiling. As a result of the reaction, carbon dioxide. Why is this happening? Molecules of soda and vinegar come into contact in a glass and gas is released. Let's modify the experience a little.

enrich children's consciousness with new content that contributes to the accumulation of ideas about the world around them;

expand children’s understanding of objects and phenomena of inanimate nature;

develop activity, initiative and independence in cognitive activity.

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Experimental activity “Volcanic eruption”

Target:

Cognitive development:

enrich children's consciousness with new content that contributes to the accumulation of ideas about the world around them;

expand children’s understanding of objects and phenomena of inanimate nature;

develop activity, initiative and independence in cognitive activity.

Speech development:

expand vocabulary on the basis of the rich ideas about the world that children are developing, to activate them in independent statements;

activate vocabulary in speech practice: lava, volcano, volcanologists, ash, dormant volcano, active volcano, extinct volcano etc.

Social and communicative development:

cultivate interest and desire for creative knowledge of the world around us

create a condition within the lesson for independent cognitive activity children.

support the child’s desire to actively engage in interactions with peers and adults;

form equal, friendly relationships between peers;

Physical development:

Strengthen children's health.

Problem question: What is a volcano?

Hypotheses: 1. A volcano is a fire-breathing mountain.

2. A volcano is an ordinary mountain.

Equipment:

pictures of volcanoes;

pallets;

video film;

soda;

citric acid;

dry red paint;

washing liquid;

teaspoons;

pipettes;

glasses of water;

napkins

clarity: pictures of natural phenomena,

preliminary work: acquaintance with natural phenomena.

Progress of the study

Hello guys. I'm glad to meet you. My name is...

Let's enjoy the sun and the birds,

Let's enjoy smiling faces,

Let's say good morning to our friends. ...

Good morning, let's say to the guests...

My children love to observe natural phenomena. What natural phenomena do you like to observe? ... (pictures)

My children have prepared a riddle for you. What natural phenomenon can we observe in spring, summer, and autumn? … ….)

If the children find it difficult, the teacher uses a riddle

Let me help you. Guess the riddle:

The field, forest and meadow are wet,

City, house and everything around!

He is the leader of clouds and clouds,

You know this is -.

RAIN

But we won't talk about rain. About what? About such a mysterious, enigmatic, amazing and formidable natural phenomenon as a “volcanic eruption.”

Listen to an interesting legend.

“There lived a god named Vulcan and he liked blacksmithing - standing at an anvil, hitting iron with a heavy hammer, fanning the fire in the forge. He built himself a blacksmith inside a tall mountain. And the mountain stood right in the middle of the sea. When the volcano hammered, the mountain trembled from top to bottom, and the roar and roar echoed far around. From the hole at the top of the mountain, hot stones, fire and ash flew with a deafening roar.

Since then, people began to call all fire-breathing mountains “volcanoes.” “The volcano is working,” people said with fear, and went to live away from this place.

Nowadays, to prevent disaster from happening, scientists specifically monitor volcanoes. They record their observations using a video camera.

I invite you to the cinema. Gesture. Come on in. Take a seat. ...

The viewing is accompanied by explanations from the teacher.

2 fragment: - Lava is melted stones. It flows down the slope and flows out very, very far from the volcano. Along the way, it burns grass and trees, destroys everything living and inanimate, turning it into ashes. When lava flows far from the volcano, it hardens and turns into stones.

Fragment 3: See what a volcanic eruption looks like at night. Like a fiery river of lava flows.

How does a volcanic eruption begin? (First appears... smoke)

How does lava spread?)

What remains after a volcanic eruption? ... (frozen stones, burnt trees) ...

We observed an active volcano. And there are also dormant and extinct ones.

Which volcano do you think is called dormant? ... A sleeper is a volcano that looks like an ordinary mountain, but can explode with fiery lava at any moment.

I tried to make a model of a sleeping volcano. Exhibits

It seems? … How? ... (shape, there is a hole on top). The volcano is cone-shaped.

Top part with funnel. This is a volcano crater.

The crater of the volcano is a huge bowl with steep slopes, and at the bottom there is a reddish-orange mouth - this is a vent, a hole going deep into the ground.

It's interesting to watch a volcano erupt. It's safer to do this in a movie theater. You can also make a model of a volcano and watch the lava erupt, bringing the volcano to life.

Before conducting an experiment to revive a volcano, I would like to check whether you know how to be attentive, careful, and not make prohibited movements.

The game is called "Forbidden Moves". Rule: it is forbidden to make such movements... Be careful, I will also show prohibited movements.

Everyone tried to be attentive. This means that during the experiment you will work carefully and carefully, following the instructions.

Look, on the tables there are models of volcanoes and equipment that will help us awaken them.

In order not to harm ourselves and others, we will work according to the scheme, observing the rules of safe behavior.

We must work carefully:

do not put anything in your mouth - symbol

carefully pour powder - symbol

carefully pour water - symbol

do not touch lava - symbol

use napkin symbol

To awaken a volcano, you need to:

put 1 spoon of red magic powder - symbol

pipette 5 drops yellow liquid- symbol

add water no more than 4 spoons - symbol

The eruption begins after water is added, but not immediately. You need to check how many spoons of water to add to make the lava flow.

We take jobs. Each has its own volcano model, measuring spoon and pipette. The experiment diagram, red powder, yellow liquid, water and the diagram lie in the center for two. It will be necessary to come to an agreement so as not to interfere with the other’s careful conduct of the experiment.

So what do we need to check? ... We need to check how many spoons of water to add to make the lava flow.

Children conduct an experiment. The teacher advises and monitors compliance with the rules of safe behavior.

What beautiful, wonderful, unusual volcanoes you brought to life.

After what order of spoons did lava begin to appear? ...

Who had lava pour out very quickly? ...

When did the lava flow faster, after three or four spoons? ... So, in order to observe longer, it is better to add three tablespoons of water.

So, today we talked about a volcanic eruption. Did you like it? ...Can you tell the other children in the group about this? ... I think you will succeed. And for this I give you an album with photographs of the volcano, a diagram of the experiment, composition for the experiment and a model of the volcano.

We have a new set for fans chemical experiments from the "Super Professor" series. This time we have to watch a volcanic eruption and pharaoh snakes.

Important! These experiments should only be carried out in nature - there is a lot of fire and ashes!

And about our experiments that we carried out at home, see the articles ““”.

This time we decided to start our chemical experiments by reviving pharaoh snakes.

Qiddycome: Series “Best Chemistry Experiences and Experiments: Pharaoh's Snake”

For this chemical experiment we needed:

• Evaporation bowl
• Dry fuel
• Matches
• Scissors (or tweezers)
• Calcium gluconate – 3 tablets
• Gloves

Conducting the chemical experiment “Pharaoh’s Snakes”

1. We put a tablet of dry fuel into the bowl and set it on fire.
2. Using tweezers, carefully place the calcium gluconate tablet on the fire.

The tablet turns into a pharaoh's snake, which crawls out of the bowl and grows until it crumbles into ashes.

Calcium gluconate should be placed in the center of the burning tablet, then the pharaoh’s snakes will be fat :) We first put one calcium gluconate tablet in the center, and two at the edges, and in the video you can see how the snakes differ in size. Then we moved the calcium gluconate to the center and all the pharaoh's snakes began to flow merrily.

Watch the video of how Pharaoh's snakes crawl:

Scientific explanation of the Pharaoh's Serpents chemical experiment

When calcium gluconate decomposes, calcium oxide, carbon, carbon dioxide and water are formed. The volume of decomposition products is much larger than the volume of the original product, which is why such an interesting effect is obtained.

In the “Super Professor” set, the ingredients are designed to repeat the “Pharaoh’s Snakes” chemical experiment three times.

Qiddycome: Series “The best chemical experiences and experiments: Vulcan”

Like most blog moms, Olesya and I made a volcano out of soda and vinegar several times. I thought there would be something similar in the box. But I was very wrong. The eruption experiment here was completely different - much cooler!

For the Vulcan experiment we used:

• Evaporation bowl
• Foil (non-flammable heat-resistant material)
• Ammonium dichromate (20 g)
• Potassium permanganate (10 g)
• Glycerin – 5 drops
• Pipette
• Gloves

Carrying out the chemical experiment “Vulcan”

1. Place foil on the table and place the evaporation bowl on it.
2. Pour ammonium dichromate (half a jar) into a bowl and make a depression at the top of the slide.
3. Pour potassium permanganate into the recess.
4. Take a few drops of glycerin and drop it onto potassium permanganate.

A few minutes later our volcano caught fire. Myself! No burning!

Here is a video of our burning volcano:

Scientific explanation of the chemical experiment "Vulcan".

It turns out that ammonium dichromate burns on its own if you set it on fire. But in our experiment, a mixture of potassium permanganate and glycerin worked as a fuse. Due to the reaction of this mixture, heat began to be released, which led to the ignition of ammonium dichromate.

Burning volcano eruption - amazing chemical experiment ! We have probably never conducted a more interesting experiment!

Much has already been written about the use baking soda in one area or another. Properties of this substance allow you to use it in the kitchen when cooking, in everyday life for cleaning various surfaces from grease and plaque, in treatment various diseases and so on. Another use of sodium bicarbonate is the ability to organize educational shows for children, for example, you can make your own volcano from soda.

Stock up on baking soda and vinegar because your kids will ask for it again and again!

This is possible due to the ability of soda to react violently with certain substances, for example, vinegar. And one of the most common experiments involving this property of sodium bicarbonate is the demonstration of a volcanic eruption. Below is a detailed look at how to make a volcano from baking soda.

Volcano eruption experience

The first thing you need to know is why such a reaction occurs when combining soda and vinegar. Without going into details: soda has pronounced alkaline properties, while vinegar, on the contrary, has acidic properties. When their molecules combine, both environments are neutralized to neutral, resulting in the release of carbon dioxide, the rapid release of which causes the appearance of foam.

Experience with the combination of these substances can be used not only as a demonstration natural phenomenon. This is a good time to explain the basics of interaction various substances and reactions between them.

Preparation for the experiment begins with making the volcano itself. This can be done in several ways, which will result in reusable or disposable inventory. To create the first one you will have to put in more effort and time, but the second one is suitable for spontaneous decision please children with an interesting spectacle.

Method No. 1

IN in this case What is being created is a reusable model for repeated execution of the experiment.

To make the Vulcan body, the following components are needed:

• an ordinary 1.5 liter plastic bottle for any drink;
• a flat plastic lid (for example, from disposable food containers);
• tape of any kind;

It is not necessary to sculpt a “volcano” from new plasticine; already used plasticine will do just fine.

• gypsum or alabaster (can be replaced with salt dough);
• gouache with PVA glue, in a ratio of 1:1 (can be replaced with acrylic paint);
• tray or cutting board (as a base);
• paper;
• foil.

Sequence of actions:

1. Building the foundation. Plastic bottle it is necessary to cut it by measuring the desired height of the cone (the upper part is needed). The resulting base is carefully attached with tape to the above plastic cover.
2. Attaching the base of the volcano to the base. The resulting structure is attached with tape to a tray or cutting board. You can also use a suitable piece of plywood or thin board as a base.
3. Forming a cone. Using pieces of paper and tape, a cone is formed around the bottle with the upper base at the edges of the neck. To avoid subsequent soaking of the paper pulp, the cone is wrapped in foil.
4. Finishing the “walls” of the volcano. Dilute gypsum or alabaster to a thick sour cream. The resulting mixture covers the slopes of the “fire-breathing mountain.” Using a toothpick or fork, the relief of “mountain slopes” and trenches are formed for the preferential movement of “lava”.
5. Final finishing. After the “slopes” have completely dried, they should be painted with gouache mixed with PVA. It's best to use brown and black paint and touch up the "lava" troughs a little with red.

After preparing the “volcano”, you need to deal with the “lava”. It, of course, needs to be prepared immediately before the demonstration of the “eruption”. The components in this case are:

• baking soda - 10 g;
• dishwashing detergent - 2 drops;
• gouache or red food coloring;
• vinegar - 10−15 ml.

This quantity of ingredients is indicated for minimum quantity"lava" and low "volcano". If it is necessary to increase the intensity of the “eruption”, the amount of all components increases accordingly. The sequence of actions in this case is as follows:

1. Combine baking soda, the chosen type of dye and dishwashing detergent, stirring thoroughly.
2. Pour the resulting mixture into the “volcano mouth”.
3. Add vinegar carefully to the “mouth” and enjoy the result.

For a more active reaction, vinegar can be poured in quickly. By the way, the added dishwashing detergent is responsible for this.

Method No. 2

As mentioned above, a volcano made using the previous method allows you to obtain a prop that can be used repeatedly. However, this takes quite a significant amount of time. For one-time use, you can make props using a simplified method.

The spectacle is truly spectacular

The ingredients in this case will be:

• sheet of cardboard;
• plasticine;
• small jar;
• tray or cutting board (as a base).

The sequence of actions is as follows:

1. Roll the cardboard into a cone, giving the required “slope” angle. Glue it in this position or secure it with tape. Cut top part to obtain a “vent”.
2. The outer part of the cardboard is covered with plasticine, forming “ledges” and “grooves”.
3. Before demonstrating the experiment, the jar is filled with a mixture of soda, dishwashing detergent and dye, after which it is placed on the base and covered with a “mountain” cone.
4. Next, vinegar is poured into the mouth and the “eruption” begins.

It is possible to conduct an experiment with citric acid or lemon juice. In this case, vinegar is not used, and soda should be added last.

The properties of baking soda allow you to use this product in the most different situations. And as everything described above shows, even as a means of entertainment or to broaden the horizons of children. Thanks to the simple preparation and the ability of soda to react violently with vinegar, you can give your children an unforgettable spectacle that they will ask for pleasure from more than once.

Olga Happy Category: 6 comments

Chemical experiment volcano at home

Hello, dear readers! It's no secret that all children love the mysterious, beautiful and magical. Perhaps your children also like everything fabulous and interesting? Wouldn't you like to play the role of a wizard for your baby? Surprise him with unusual phenomena, make a lasting impression?

I bring to your attention the experiments at home that we conduct with children. Today I will tell you about the Vulcan experience for children- this is an amazing, mesmerizing spectacle, children watch the volcanic eruption with interest, I recommend trying it. Your baby will definitely appreciate it!

In addition to this experiment, the kids and I conducted several more: an experiment with milk (you can watch) and an experiment with water (see), which I think your child will also appreciate!

1. Cardboard
2. Plasticine
3. Jar (I took it from baby puree)
4. Plate or tray
5. Stapler
6. Scissors
7. Dishwashing liquid 1 tbsp.
8. Soda 1 tbsp.
9. Acetic acid
10. Thinned paint

Making preparations for the Vulcan experiment

Experience at home Vulcan

Now I will tell you in detail how to do the volcano experience. By the way, during the experiment, the children took an active part - they covered a paper cone with plasticine, poured soda into a jar, poured detergent, colored the water with paints, after which the resulting colored solution was poured into a jar. The only thing I did myself was to cut out a cone, fasten it with a stapler and pour vinegar into the mouth of the volcano, after which the eruption began. So, let's proceed directly to the experiment.