The scientific method is defined as the systematic acquisition of knowledge through observation and experiment.
It provides a structured, iterative process composed of specific characteristics and sequential steps to build, evaluate, and refine scientific understanding.
Primary Steps of the Scientific Method
1. Observation
Observation forms the initial basis of scientific inquiry by identifying natural phenomena.
Qualitative Observations: An observation may be qualitative in nature and as simple as noting a physical phenomenon directly observed by the naked eye without numerical measurement.
Quantitative Observations: An observation may also be quantitative in nature, requiring tools or specialized instruments in order to be quantified, recorded, and thoroughly understood through precise measurement.
2. Formulation of a Hypothesis
The formulation of a hypothesis involves creating a tentative or speculative explanation for the observed phenomena.
This tentative explanation serves as the foundational basis for guiding future experiments.
Core Criteria for a Hypothesis:
A hypothesis must be testable through direct experimentation or observational studies.
A hypothesis must be falsifiable, meaning there must be a logically possible experimental outcome that could demonstrate the explanation to be false.
3. Testing the Hypothesis
Having formulated a hypothesis, it is used to make specific predictions about experimental outcomes.
Experiments are carefully designed and executed in order to test these hypothetical predictions under controlled conditions.
4. Analysis and Conclusion
Following the execution of experiments, the resulting experimental data are reviewed and evaluated.
Based on whether the data support or fail to support the hypothesis, it can be concluded that the hypothesis is either valid or invalid.
If a hypothesis is validated by the experimental data, it becomes the foundation for further experimental testing, higher-level theoretical modeling, and ongoing refinement.