April 17, 2009, Newsletter Issue #340: Physical properties
Tip of the Week
When moist, clay can be smooth, sticky or slippery, soft, and dense. Its shape can be changed without breaking the material--it can be modeled. We call this most important property of clay plasticity*. A sample of dirt we might find that becomes plastic when we wet it can be considered to be clay or to contain a large percentage of clay. When it is dry, clay can be hard, powdery, and fragile. When fired it is transformed to become very hard, strong, dense, brittle, and impervious to water. Read my full article: Physical properties of clay.
About LifeTips
Now one of the top on-line publishers in the world, LifeTips offers tips to millions of monthly visitors. Our mission mission is to make your life smarter, better, faster and wiser. Expert writers earn dough for what they know. And exclusive sponsors in each niche topic help us make-it-all happen.
| Guru Spotlight |
| Christina Chan |
