A scatterplot compares Maths and Science marks for individual students, with each circle colored steelblue when Maths exceeds Science and orange when Science is greater than or equal to Maths. Built with D3 v6 and rendered as SVG, the chart uses `d3.csv` to load the dataset, `d3.scaleLinear` for both axes, and `d3.axisBottom` and `d3.axisLeft` for ticks. Axes labels, a title, and a two-color legend clarify the comparison, while hover effects on the circles are not implemented.