Scientific observation differs from ordinary observation, since it is carried out subject to a number of conditions, namely:
1. The object of observation is determined.
2. Objective of observation is formulated.
3. A hypothesis is often put forward (Greek hypothesis – foundation) – a scientific assumption.
4. A plan is drawn up to test the hypothesis put forward in the course of a chemical experiment.
5. Based on the results of the experiment, it is concluded that the hypothesis is true.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.