Here's why:

* Observation is the foundation: Science starts with noticing something interesting or puzzling in the world around us. This could be a natural phenomenon, an unexpected result in an experiment, or simply something that doesn't make sense.

* Curiosity is key: Observation sparks curiosity, prompting us to ask questions and seek answers.

* Data collection begins: Observations often lead to the collection of data, which can be qualitative (descriptive) or quantitative (numerical).

Without careful observation, scientific inquiry cannot proceed. It's the foundation upon which hypotheses are formed, experiments are designed, and explanations are developed.