Lesson 13 — Representing Data and Evaluating Investigations 1 / 6

You've collected your results — now we make them speak. Scientists turn raw numbers into tables and graphs so patterns jump straight out.

First, get your results into a clear, titled table. Then choose the right kind of graph.

Watch me build a line graph step by step. The variable I changed goes on the bottom; what I measured goes up the side.

Foil length (cm) Brightness Longer foil = dimmer globe
Plot each point, then join them. The downward line shows the trend: as foil length increased, brightness fell.

A graph isn't the end — scientists evaluate: did it work, and was it fair? Let's evaluate one investigation together.

Now work with your own data (or the class data).

Exit ticket to finish.