What is the difference between the concepts of substance and body? Give examples of what.

The physical body has a certain volume, shape, dimensions. And substance is what physical bodies are made of. The smallest unit of a substance that preserves its properties is a molecule.
Physical bodies and substances of which they are composed:
– nail – iron;
– a piece of chalk – calcium carbonate;
– ring – gold;
– table – cellulose.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.