This scatter plot visualizes the Iris dataset, mapping petal width to sepal length and coloring each point by species (blue, red, or yellow). The visualization is implemented as a reusable D3 module, `scatterPlot`, which uses `scaleLinear` to compute axes and `axisBottom`/`axisLeft` to render them. Data is loaded via `csv` and drawn as SVG circles with white strokes. The chart adapts to the full window size and includes axes labeled with the data values.