Fascinating chemistry

Smart plasticine, also known as chewing gum for hands, is one of the most popular polymer children's toys for the development of finger motility. Games with him sin even adults. Consider a way to give smart plasticine magnetic properties, making it even more interesting. Materials and tools: Silly Putty, Thinking Putty, Thinking Clay chewing gum or other; iron oxide powder; mixing container; Neodymium magnet; disposable gloves; respirator or face mask.

Many have tried to remove rust with acid solutions, usually leaving the part in the bath overnight. This is an effective way, but it takes a lot of time. Consider how to remove rust faster. Tools and materials: water; lemon acid; pan; metal brush; dry rags. How to remove rust quickly Rusty parts are lowered into a pot and filled with water.

The manufacture of products by casting, taking into account modern materials, has become quite affordable, quite simple and inexpensive. Consider using polyurethane for pouring and silicone to create the mold. It will be required For work, we will use quite accessible and inexpensive materials and products: silicone "ELASTOLUX-M" for the manufacture of molds; silicone "ELASTOFORM" for the manufacture of the substrate; kerosene or petroleum jelly separator; oppression for a form with a total weight of 1 kg; injection polyurethane "UNICAST 9" (base, part A); hardener (part B); precision scales; plastic glass.

Over time, even tool steel products with alloyed additives rust, especially if they are rarely used and stored in an insufficiently dry and ventilated place. How to remove rust from tools if it still hit them? There are various ways to deal with this common problem.

The need for a source of thermal energy can arise in a home workshop, at work or on a camping trip. Is it possible to make it from improvised materials, quickly and at the same time ensure fire safety. Let's try. We’ll need to. We'll get along with simple materials that cost almost nothing: an empty aerosol can; two aluminum tubes of different diameters and lengths; jet bolt and two ordinary bolts; cotton wick; metal cap from a glass bottle.

Files, like any other cutting tool, become dull over time, as the notch wears out, becomes clogged with particles of the processed material, grease and oil deposits, dirt and other undesirable ingredients. How to quickly and cost-effectively restore the cutting properties of this tool?

Sometimes after buying a hand tool, it turns out that it is of poor quality due to flaws in hardening at the factory. Consider the method of heat treatment of screwdrivers, chisels, drills, knives, etc. at home. But it should be noted that hardening, along with hardening of the metal, leads to an increase in its brittleness.

Gasoline is a very flammable liquid, due to the fact that it is obtained from fractions of oil with a low boiling point. Gasoline itself not only burns very well, but its vapors are also very well ignited, therefore it is strictly forbidden to leave containers with it open. In the article you will see, solely for acquaintance, how to make an installation that will produce gas, with which you can power the burner and provide long and stable combustion.

This amazing experiment is available for repetition to almost everyone. With it, you can easily surprise your friends or acquaintances. Yes, and acquaintance with the metal, which melts from the heat of human hands, will be very interesting and informative. It will take all that is needed for the experiment: Gallium - it can be bought without any problems on Aliexpress (http: // ali.

This white inorganic powder is in every kitchen. Despite the simple chemical formula (NaHCO3) and low cost, it is able to replace many household preparations. Usually it is used as a baking powder for baking or as a cleaning agent for kitchen and household utensils. But soda also has other beneficial properties.

Probably every homemade man or craftsman already knows that if gluing something sprinkle super glue with soda, then these compounds will be several times stronger. But is it really so? What happens to superglue when baking soda enters it? By the way, instead of it, you can use edible salt finely ground - extra.

They learned about soda for the first time in the mid-19th century. Even then, people appreciated these effervescent jizzies and used some water to quench their thirst. Surely, each of you drank sparkling water. In the modern market of soft drinks its varieties are huge. But what about the fact that what would prepare soda at home?

About growing crystals at home, you can find a lot of information. For example, from copper sulfate or common salt. I want to offer a simple way to grow coral-like crystals with a turquoise hue. What we need: coarse salt, a pinch of copper sulfate and clear water without boiling.

The proposed model of the volcano is easily manufactured at home. It can become a spectacular imitation of the process that occurs in the bowels of our Earth. The manufacture of the object is divided into 2 logical parts. The first part is the manufacture of a volcanic cone. The second part is actually a demonstration of the process of eruption of magma.