Clays exhibit plasticity when mixed with water in certain proportions. When dry, clay becomes firm and when fired in a kiln, permanent physical and chemical reactions occur. These reactions, among other changes, cause the clay to be converted into a ceramic material. Because of these properties, clay is used for making pottery items, both utilitarian and decorative. Different types of clay, when used with different minerals and firing conditions, are used to produce earthenware, stoneware and porcelain. Prehistoric humans discovered the useful properties of clay, and one of the earliest artifacts ever uncovered is a drinking vessel made of sun-dried clay.[citation needed] Depending on the content of the soil, clay can appear in various colors, from a dull gray to a deep orange-red.
Clay tablets were used as the first writing medium, inscribed with cuneiform script through the use of a blunt reed called a stylus.
Clays sintered in fire were the first form of ceramic. Bricks, cooking pots, art objects, dishware and even Musical Instruments such as theocarina can all be shaped from clay before being fired. Clay is also used in many industrial processes, such as paper making, cementproduction and chemical filtering. Clay is also often used in the manufacture of pipes for smoking tobacco. Until the late 20th century bentoniteclay was widely used as a mold binder in the manufacture of sand castings.
Clay, being relatively impermeable to water, is also used where natural seals are needed, such as in the cores of dams, or as a barrier inlandfills against toxic seepage ('lining' the landfill, preferably in combination with geotextiles).[4]
Recent studies have investigated clay's absorption capacities in various applications, such as the removal of heavy metals from waste water and air purification.
it becomes warm
It gets numb.
When that happens it uses up all the oxygen and replaces it with co2 (carbon dioxide) and water and that what makes the sucking affect :)
If you boil it, the water will boil and the dye will not, leaving you with dye.
It get hotter and if it is frozen it melts. If it is melted it boils.
Dry clay can be recycled by putting it in water. This will remoisten the clay and allow it to be kneaded and molded. Once clay has been fired it can no longer be recycled. Fired clay can be soaked a long time and will not dissolve.
When clay and water are frozen together in the freezer, the water molecules expand as they turn into ice, which can cause the clay to crack or break apart due to the pressure. This occurs because the water expands and pushes against the structure of the clay as it freezes.
You have to put water in it then roll it.
70%
To cool water using clay, you can place a clay pot with water inside a larger clay pot. Wet the outer pot with water and place in a well-ventilated area. As the water in the outer pot evaporates, it will draw heat from the inner pot, thus cooling the water inside. This method utilizes the principle of evaporative cooling to lower the temperature of the water.
rub rocks together and put in water and stir
u can shape the clay into looking like a boat then let it sit for a day or 2 then put water in a bowl a put marbels in it
Clay is a naturally occurring substance with many uses, the use to which you are going to put it would decide how you would prepare it.
No, dry clay is not safe to put in a fish tank because clay is made up of chemicals and when you put that substance of chemicals into water the chemicals diffuse (spread) and that could harm the fish. But if you don't have any fish in the tank its OK to put hard clay in it.
Nothing noteworthy happens if mentos are put in tap water; they simply dissolve slowly.
An example is in brick-making. Pliable clay is formed into brick-shape, and put into a kiln. When the brick is removed from the kiln, it is a solid brick.
You put clay in the kiln when the clay is at the bone dry stage.