To make a clay model of a tornado, roll out clay into coils. Twist the coils of clay into a hollow cone shape, and add details.Know More
Divide your clay into smaller pieces. Roll out each piece of clay into a long, thin coil. Make some of the coils thinner than others.
Starting at the wide end of the cone, twist the coils into a hollow cone shape. The wide end of the cone is the top of the tornado. Use the wider coils on the wide end and the narrower coils on the narrow end. Blend the joints when one coil ends and another begins. Make sure the narrow end is sturdy enough to hold up the rest of the clay model, because it is the bottom of the tornado. Push the clay coils together on the inside of the tornado to make the coils stick together better.
Draw more lines around the tornado with a toothpick. It is okay to be messy. Bend and twist the cone shape in the center to make it look more like a tornado. Add in any miniature debris you want to the sides of the tornado, such as sticks, cows and houses. Press the narrow end of the tornado into your base.
While the mixing process is the same for fire clay mortar or refractory mortar, the portions of its materials will vary depending on the type of cement used. The mix for refractory or fire clay mortar is different from typical mortar to compensate for its exposure to high temperatures. Refractory mortar should also not be exposed on the inside part of an oven to minimize its shrinkage.Full Answer >
To make a mountain out of modeling clay, a mound of clay should be shaped with the hands so that the mountain is about 4 inches in height and completely flat on the bottom. The mountain may be anchored to a piece of cardboard using toothpicks.Full Answer >
Clay can be fired in a bonfire using straw or grass as fuel. For clay to become pottery, it must be heated to 1,000 degrees Fahrenheit.Full Answer >
You can't bake or fire air-dry clay. Air-dry clay has been specifically designed to dry well without being fired in a kiln or heated using a microwave or oven.Full Answer >