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We take care of our children every day - we cook them porridge in the morning and iron their clothes. But in 20 years they will remember not our household chores, but the moments spent together.
website I have collected 16 experiments that will take adults away from their work and captivate children. They do not require much time and some special preparation, and there will be a lot of pleasure. And then you can cook the porridge. Together.
Solid liquid
You will need:
- starch
- plastic container
- food coloring, board, hammer and nails for additional experiments
Mix water and starch in a container until it reaches a creamy consistency. The result is a “non-Newtonian” liquid. You can easily sink your fingers into it, but if you hit the surface with your fist, you will feel that it is hard. Place a board on the surface of the liquid and you will easily drive a nail, but as soon as one corner of it is drowned in the liquid, the board will easily sink to the bottom. If desired " solid liquid» Can be colored with food coloring.
DIY kinetic sand
You will need:
- 4 tsp. boric alcohol
- 2 tsp. office glue
- 1 tsp. dye
- 100 g sand for chinchillas
- glass bowl
Pour all the liquid ingredients into a bowl, add sand and mix thoroughly. Done, you can create!
Pharaoh snake
You will need:
- sand
- alcohol
- sugar
- matches
- plate for "snake"
Pour a heap of sand into a plate, soak it in alcohol, and put a mixture of sugar and soda on top. Set it on fire. The “snake” grows up instantly!
Electric train made of wire and batteries
You will need:
- a roll of thick copper wire (the more wire, the longer the “tunnel”)
- 1 AA battery
- 2 round neodymium magnets, matching the diameter of the battery
- ordinary pen
Wind the wire around the handle to create a long spring. Attach magnets to both ends of the battery. Start the "train". He will drive himself!
Swing made from a burning candle
You will need:
- candle
- thick needle
- lighter
- two glasses
- pliers
Cut off the bottom end of the candle by a centimeter and a half to free the wick. Hold a needle in pliers and heat it with a lighter, then pierce the candle in the middle. Place it on the edges of two cups and light both sides. Rock it slightly, and then the candle will begin to rotate on its own.
Rainbow of paper towels
You will need:
- food coloring
- paper towels
- 5 glasses
Place the cups in a row and pour water into the 1st, 3rd and 5th. Add red food coloring to the 1st and 5th, yellow to the 3rd, and blue to the 5th. Fold 4 paper towels into quarters to create strips, then fold them in half. Insert the ends into different glasses - one between the 1st and 2nd glasses, the second between the 2nd and 3rd, etc. In a couple of hours you can admire the rainbow!
Elephant toothpaste
You will need:
- 3/4 cup water
- 1 tsp. potassium permanganate
- 1 tbsp. l. liquid soap
- hydrogen peroxide
- glass flask
- disposable gloves
Dissolve potassium permanganate in water, add liquid soap and pour the mixture into a glass flask. Carefully but quickly pour in the peroxide. Stormy foam will splash out of the flask upward - real toothpaste for the elephant!
Very slow ball
You will need:
- steel ball
- transparent plastic container ball made of two halves
- liquid honey
Place the steel ball in a container, pour in honey and launch the entire structure down the slide. Hmm, what if you try it with shower gel?
Smoke rings
You will need:
- plastic bottle (0.5 l)
- balloon
- incense stick
- lighter
- scissors
Cut off the bottom plastic bottle and half balloon. Place the wide part of the ball onto the cut of the bottle. Insert the stick into the bottle, cover its opening with your hand and wait until it fills with smoke. Make smoky rings by sharply tapping the tense ball with your finger.
Self-inflating balloons
You will need:
- 4 plastic bottles
- table vinegar
- 3 tbsp. l. soda
- 3 balloons
- liquid food coloring
Cut off the top of a plastic bottle, pull all the balls one by one over the hole and pour a spoonful of soda into each ball through the resulting funnel. Pour vinegar onto the bottoms of the bottles, add some food coloring there, and carefully, so that the soda does not spill into the bottle, pull the balls over the holes. All you have to do is lift them up - the soda will spill out, react with the vinegar, and the balls will inflate on their own.
Vinegar soda rocket
You will need:
- plastic bottle (2 l)
- 3 simple pencils
- 2 tbsp. l. soda
- 200 ml vinegar 9%
- wide tape
- wine stopper
- paper towel
Make sure in advance that the cork fits tightly to the neck of the bottle. Tape the pencils to the top of the bottle so that it can stand. Pour vinegar into the bottle. Wrap the baking soda tightly in a paper towel and twist the ends tightly. Go outside, put a package of soda in a bottle and plug it with a cork, pressing one end of the package to the neck. Flip the rocket over, place it on the ground and run! Takeoff must be observed from 15–20 meters, no less.
Chemical experience - experiment - mix potassium permanganate and hydrogen peroxide. For this fun experiment you will need: 1. Potassium permanganate (potassium permanganate) - potassium permanganate, potassium salt of permanganate acid. Chemical formula- KMnO4. It is a dark purple, almost black crystal, which when dissolved in water forms a brightly colored solution of crimson color. 2. Hydrogen peroxide (hydrogen peroxide), H2O2 - 30%. Careful, don't touch! 3. Dishwashing liquid, or any well-foaming liquid (shampoo, liquid soap, bubble bath, etc.). 4. Water, dyes. Reaction: when a solution of potassium permanganate and hydrogen peroxide interact, a lot of oxygen is released, which, together with the dishwashing liquid, produces a lot of foam! Use gloves! Don't touch with your hands! Conduct the experiment only in the presence of adults! More interesting experiments: Rubber egg = Egg + Vinegar https://www.youtube.com/watch?v=T9qLuSEsxNc Fire ball - how to make "non-burning, blessed fire" - https://www.youtube.com/watch?v=OMjmmt9SEzs Egg + Vinegar = Rubber Egg - https://www.youtube.com/watch?v=d0O7VWRHmUE Exploding an aluminum can from the inside https://www.youtube.com/watch?v=E7uNOlVArh4 Chemical investigation - experiment - mixing potassium permanganate and water peroxide. For this fun fact you will need: 1. Potassium permanganate (potassium permanganate) - potassium permanganate, potassium permanganate. Chemical formula - KMnO4. They are dark violet and even black crystals, which, when broken up in water, create a bright, raspberry-colored color. 2. Water peroxide (water peroxide), H2O2 - 30%. Be careful, don’t scratch! 3. A place for washing dishes, or if it would be nice to take a bath (shampoo, rare soap, bath soap, etc.). 4. Water, barnacles. Reaction: with the interaction of potassium permanganate and water peroxide, a lot of sourness is seen, which at the same time gives a lot of foam to the dishes! Vikorist mittens! Don't touch with your hands! Conduct investigations in the presence of adults! Chemical experience - experiment - mix potassium permanganate and peroxide. For this purpose, I will give you the following experience: Reactions: the use of solutions of manganese and peroxide will produce a lot of oxygen, which will result in a lot of foam! Get your fingers out! Be careful with your hands! The truth is that the experience is only for the gifted! Chemical experiment - a mixture of potassium permanganate and hydrogen peroxide. Reaction: interaction with a solution of potassium permanganate and hydrogen peroxide - all distributing a lot of oxygen, which also leads to a lot of heat! Get out of the rakavitsi! Don't finish it! Punish the honey servant yourself in the presence of adults! music
Interesting chemical experiments can be carried out using household items that are usually stored in a medicine cabinet at home. In this article we will talk about experiments with potassium permanganate and hydrogen peroxide.
What are peroxide and potassium permanganate?
These two reagents can be purchased at almost every pharmacy.
Hydrogen peroxide is the simplest peroxide with the formula H₂O₂. It is a colorless liquid with a faint odor that is soluble in water and some organic liquids. The substance is used in all spheres of life: in medicine, beauty and industry.
Hydrogen peroxide is usually sold in glass or plastic jars with a dispenser, and this substance has different concentrations: from 1-6 to 98 percent. Hydrogen peroxide produced in tablets is called hydroperite (in the tablet the peroxide is mixed with urea).
The same experiment can be repeated with hydroperite. To do this, you need to crush the tablets into powder and prepare a highly concentrated solution by mixing hydroperite with warm water. However, in this case the foam will not be so thick. The density of the foam and the intensity of the reaction depend on the soap used and the proportions, as well as on the concentration of peroxide (you can even use three percent, but instead of a snake you will just see abundant foam).
To make the experiment exciting, use food coloring and mix it with the soap.
When manganese and hydrogen peroxide are mixed, a large release of oxygen begins. Only in this case is it released inside detergent, thereby provoking copious amounts of foam.
Hydrogen peroxide itself decomposes into oxygen, and potassium permanganate is only a catalyst that accelerates the process.
A drop of blood and hydrogen peroxide
Also, oxygen is released abundantly from peroxide when it comes into contact with blood, so when treating wounds you can see the rapid release of bubbles and hear hissing.
Chemistry is not only formulas and waiting for the call from class, but also an entertaining science that amazes with its possibilities. You can instill in your child an interest and love for a subject with the help of simple, but no less impressive home experiments.
Ink remover
Sometimes pens leak in your pockets, marks appear on notebooks, and the snow-white tablecloth becomes stained with ink. All this can be corrected, and at the same time you can show your child a fascinating experiment.
You will need:
- Vinegar;
- Potassium permanganate;
- Hydroperite tablet (sold in a pharmacy);
You need to pour a little water into two glasses, dissolve a little potassium permanganate in one, and a hydroperite tablet in the other. First, the ink is blotted with a solution of potassium permanganate, and then the stains are removed with a solution of water and hydroperite. The result is a completely clean surface without traces of ink.
Smoke in a glass
You can make your own smoke in a glass, and even without fire, with just 2 ingredients:
- Ammonia solution 25%
- Hydrochloric acid.
Just pour a little hydrochloric acid into a glass and cover with a lid or Petri dish containing a few drops of ammonia.
Rose and ammonia
Because ammonia remained from the previous experiment, you can use it in another experiment, with which you can paint a flower.
For it you will need:
- Light or white rose;
- Ammonia:
- Jar or aquarium.
The rose should be placed in a vase or glass, and the container itself should be placed in a Petri dish, lid or saucer, on which a little ammonia will be spilled. After that, all this needs to be covered on top with a jar or an aquarium and allowed to stand for at least an hour. Rose petals, in this experience, serve as a chemical indicator, similar to litmus paper. Ammonia vapors having alkaline reaction, cause a change in the color of the flower petals.
Hot money
For this chemical experience you will need:
- Lighter;
- Ethanol;
- Tweezers;
- Water.
A little ethyl alcohol is poured into a glass, the same amount of water is poured into a second glass and then mixed. In the resulting solution, you need to thoroughly soak the bill so that it is completely saturated and then allow the liquid to drain.
After this, you can set fire to the bill, which will definitely not burn.
Foam volcano
To create a home volcano you will need:
- Peroxide;
- Potassium permanganate;
- Plasticine;
- Preparation for a volcano;
- Liquid soap.
First of all, the blank for the volcano is covered with plasticine. It can be made from cardboard or any other material that can be shaped into a cone. Having covered the outer part, you need to place the cone on flat surface, such as a plate or stand, and pour liquid soap inside. Then add potassium permanganate and pour in peroxide. The reaction of peroxide and potassium permanganate will foam the soap and foamy lava will flow from the volcano.
Pharaoh snake
Ingredients:
- Dry fuel;
- Calcium gyuconate (sold in pharmacies);
- Lighter.
It is best to conduct the experiment outdoors and use a surface that is resistant to the combustion temperature of dry fuel. It is necessary to place several tablets of calcium gluconate on a plate with fuel and set it on fire. Calcium gluconate begins to react to temperature and porous “snakes” grow upward from the flame.
Photo chrdk.ru
Purple milk
To carry out this experiment you need:
- Potato starch;
- Water.
First you need to stir potato starch and milk. The liquid will turn white, very similar to milk. After this, you need to add a few drops of iodine and stir. The code will react with starch and give the liquid a saturated purple tint. True, you should absolutely not drink it.
Multi-colored paints in one glass
To make a glass with multi-layer paints that do not mix, you will need:
- 3-4 paint colors;
- Sugar;
- Water.
First you need to dilute the paints in separate glasses with water and add a different amount of sugar to each glass: 1 spoon, 2 spoons, 3 spoons, not a single spoon. Then gradually pour each color through a pipette. Due to the density that sugar gives, the layers will not mix and a multi-colored liquid will form.
Combustion of glycerin and potassium permanganate
For the experience you will need:
- Potassium permanganate;
- Glycerin is pure;
- Napkin.
Pour potassium permanganate onto a napkin and pour glycerin on top. Wrap it in a ball and wait for a while. A spontaneous combustion reaction will occur and smoke will be produced.
Exploding paper
For the experience you will need:
- Ammonia;
- Paper.
Pour iodine and ammonia in equal proportions into different glasses. Then the ammonia is carefully poured into the glass with iodine and left until separation occurs. After this, the solution is mixed and passed through paper, preferably folded in the shape of a cone. A precipitate of nitrogen iodide will remain at the bottom of the paper “cone” and if you hit it, a small explosion will occur.
Hi all!
With this article I want to complete the “potassium permanganate” cycle and talk about several experiments that you can conduct yourself and show to your children, for example, when you tell them about this wonderful substance.
Experiments with potassium permanganate are, for the most part, simple and do not require any exotic reagents. Let me remind you that I originally created my blog in order to try out and publish experiments on it that are easy to do at home.
I have already described almost all of these experiments in various articles, now I will gather them together and generalize them.
Acid discoloration
You will need:
- Potassium permanganate,
- Vinegar essence,
- Hydrogen peroxide 3%.
We make a pink permanganate solution, add 2-3 tablespoons of vinegar to it, and then 3-4 tablespoons of peroxide. The solution gradually brightens.
The reactions that occur are based on the properties of permanganate to discolor when interacting with acids. Therefore, it is recommended to scrub soiled items with various acids.
Discoloration with alkalis
You will need:
- Pink permanganate solution, as in the previous experiment,
- Concentrated solution of "Mole", that is, sodium hydroxide (what is it and how to make it).
We mix these two solutions and after a few minutes we observe how the color changes from pink to green. This, as in the previous experience, is associated with chemical properties potassium permanganate. In an alkaline environment (and sodium hydroxide solution is an alkali), manganese compounds have a green color.
A note slightly off topic. If you want to learn more about what acidic and alkaline environments are and how you can determine them yourself at home, here are articles about homemade indicators.
Change in color when interacting with components of tobacco smoke
One of my favorite experiences. They showed it to us back at the university on a subject like “ Environmental education“I don’t remember exactly.
I thought for a long time about how to replace the instruments and dishes that are in the university laboratory, but which are not at home, and finally came up with an idea. In my opinion, it turned out well and, most importantly, it was easy and clear.
Here are photographs of a solution of potassium permanganate before and after interaction with the “lungs” of a smoker:
The color change is due to the fact that tobacco smoke contains various substances: nitrogen oxides, pyridine, ammonia, aromatic amines, nicotine, tar (tobacco tar). They react with permanganate, changing its color.
Thermal decomposition of potassium permanganate
I don't really like this experiment. I have a bad attitude towards experiments with fire, flashes, etc., I can’t help it. 🙂
You will need:
- Dry potassium permanganate,
- Pharmacy glycerin,
- Heat-resistant stand.
Everything is described in detail in this article. General meaning– mix the permanganate crystals with glycerin in the required proportions, and they will flare up.
Hydroperite decomposes under the influence of potassium permanganate
You will need:
- Hydroperite tablets.
- Potassium permanganate,
- Dishwashing liquid.
The experience is described in detail in this article, so I won’t repeat it. Let me just say that it is simple and effective. You just need to practice, choose the right concentrations - and you will get even more foam than you expected.
That's all for today. How did you like the experiments? Can you do them yourself?
I wish everyone a successful chemistry!
See you in the next article!
Natalya Bryantseva
