A time-series scatter plot visualizes temperature readings from the Data Canvas Sense Your City dataset, with time on the x-axis and temperature on the y-axis. React renders SVG circles through the `Marks` component, while `d3.scaleTime` and `d3.scaleLinear` map the data extents. The `AxisBottom` and `AxisLeft` components generate tick marks and labels, with CSS styling applied via SVG classes.