Give an example of a substance that can be in several states.

The most common such substance in our life will be water. In nature, it assumes three of its states of aggregation, namely liquid, gaseous (transformation into steam) and solid (transformation into ice). The change in the state of aggregation of water directly depends on the conditions of the environment in which it is at a given time.

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.