The chemistry is not only the mountain of formulas and the difficult equations. It can be entertaining and cheerful. By means of simple experiments it is possible to make sure of it, without leaving the house. All of them are safe and will give great pleasure to you and your child.
Confidential ink
All children adore playing secret agents. They construct various espionage devices and go to save the world. If came to your small Bond to mind to transfer the confidential message to the workmate, it can be helped with it by invisible ink. Similar ink used at Ivan the Terrible. Secret agents of the tsar wrote messages with onions juice. It was possible to read what is written on parchment, its heating.
In this experience as ink will serve the diluted water solution of copper vitriol. It can be bought in any shop for a garden and a kitchen garden. Let's the child write the message by means of this solution. Let he will put on rubber gloves before its drawing up. Track that ink did not get into a mouth to your child, it threatens with severe poisoning. After the text is written, wait some time, water has to evaporate.
It is possible to show the message by means of a special key - vapors of liquid ammonia. It is better for you to carry out this procedure. Just take a leaf with the text over a small bottle with ammonia. After a while you will notice that on paper bright blue letters began to appear. Your child will be delighted.
Fiery bottles
If desired houses can be arranged a small fire-show. At observance of all precautionary measures it is absolutely safe. Experience will require two bottles (plastic and glass), isopropyl alcohol and automobile antifreeze. The last represents 60% water solution of isopropyl alcohol with a small amount of additives. Fill in antifreeze in a glass bottle, and alcohol - in plastic. Well shake up them. Later bring the burning match to a neck of each of bottles. Alcohol in both will begin to burn, but with different intensity. It is caused it by different concentration in the taken liquids. The beautiful flame will go to a bottom. It is better to watch this small show at the turned-off light. You will notice that antifreeze burns much longer than isopropyl alcohol and generates more heat. That is why it is necessary to take a glass bottle for antifreeze - plastic will simply melt in the course of burning and can provoke the fire.
Bright carnations
By means of simple and available chemical experiment, carnations can return bright and rich color easily. For this purpose air and liquid ammonia will be required. Vapors of ammonia will create an alkaline environment in petals. Air will extend from them dye which under the influence of the alkaline environment will change the color. Dyes in the nature act as the indicator, with its help it is possible to define environment type. Here such easy way it is possible "to tint" carnations.