Scientific Method
The scientific method is the process of asking a question, forming a testable hypothesis, running an investigation, and drawing a conclusion from evidence.
Definition
The scientific method is the step-by-step way scientists answer questions about the world: notice something, ask a question, propose a testable explanation, try it out, and decide what the results mean. In practice it is a cycle of planning and carrying out an investigation, analyzing and interpreting the data, and constructing an explanation, where each step depends on the one before it and the conclusion usually raises a new question. Done rigorously, it demands a falsifiable hypothesis, a design that isolates one variable, enough trials to estimate variability, and an honest comparison of results against the prediction. Peer review and replication by other scientists then check whether the finding holds up.
Example
A student wonders whether bean plants grow taller in sunlight or shade, so she plants six beans, puts three by a window and three in a closet, waters them identically, and measures height daily for two weeks. In a more precise version, a group tests whether ramp angle affects a cart's final speed by running five trials at each of four angles ($10^\circ$ to $40^\circ$), computing the mean speed and range at each angle, and reporting that speed rises with angle while noting that a $\pm 0.05\ \text{m/s}$ spread limits how confidently the $30^\circ$ and $40^\circ$ results can be separated.
Key Insight
The method is a loop, not a straight line: a surprising result sends you back to sharpen the question and try again. A hypothesis that turns out wrong is still a success, because the investigation gave a clear answer. Real science rarely follows the textbook steps in order, since scientists jump between modeling, observing, and testing, but the standard never changes: a claim must be checked against evidence that anyone can reproduce.