It will be rock hard.
Yes, use epoxy.
The general composition of a soil sample will be some sand, some silt, some clay, and some organic matter, plus a certain amount of microbial life, air and (unless it's completely dried out) some water.
Add water to it.
Yes, certain types of clay can dissolve in water. These types of clays are not fired, non oil based clays, but natural and air dried clays.
I have never heard of clay exploding unless your talking about the way clay explodes when its in a kiln for art purposes. In that case its not really the clay exploding, but the air bubbles inside of it becoming too great in pressure that the clay "pops" like a bubble letting the air out and leaving a mess.
Yes, use epoxy.
Dried clay
Clay that is burnt is stronger than clay that has just been dried in the air.
A dried clay cannot be classified as a rock
Paper Clay is any clay fine enough for an artist to use, and cellulose (paper) fibres added to give strength to and reduce the weight of the clay. The finished object is air-dried.
Dried clay
Yes, you can use acrylics on clay after the clay has been dried.
The general composition of a soil sample will be some sand, some silt, some clay, and some organic matter, plus a certain amount of microbial life, air and (unless it's completely dried out) some water.
Add water to it.
Yes, certain types of clay can dissolve in water. These types of clays are not fired, non oil based clays, but natural and air dried clays.
desert gravel is just dried clay
I have never heard of clay exploding unless your talking about the way clay explodes when its in a kiln for art purposes. In that case its not really the clay exploding, but the air bubbles inside of it becoming too great in pressure that the clay "pops" like a bubble letting the air out and leaving a mess.