Question

what is science what do you mean by science

Answer 1

The intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment is called Science.

Answer 2

Science is the field of giving rigorous answers, but ironically the definition of "science" is itself not rigorous.

Science is:

Processes for creating models for reliable prediction and control of the natural world;

Models created using those processes; and  

Application of those models.