Uncertainty - GCSE Chemistry Definition

Uncertainty in GCSE Chemistry refers to the doubt or lack of exactness involved in measurements and results. It is the range within which the true value is expected to lie. When you measure something, like the volume of a liquid or the mass of a substance, the equipment you use has limitations. This means that every measurement you take will have some degree of inaccuracy, even if it is very small. Understanding uncertainty helps chemists know how reliable their results are and allows them to compare results accurately with others. It is important for making scientific conclusions and ensuring experiments are as precise as possible.