Today everything comes together. You'll plan and run your own fair test — using a foil ribbon as a wire — to find out what changes how a circuit works. This is an assessed investigation.

Before we plan, let's bring back the three jobs of a variable from Lesson 1.

Watch how I turn a curiosity into a testable question with clear variables.

Let's plan one together on the board, then you'll do your own.

Now it's your investigation. Plan it, get it approved, then test.

Share your result to finish.