Content and Resources
| Chapter | |
| 1 | Introduction |
| 2 | Gravitational models: creating a difference can make something happen. Ball on table model (1) |
| 3 | Penguin race model (2) |
| 4 | Bowls and beads model (3): beads ‘flowing’ like current because of height difference like potnetial difference |
| 5 | Measuring potential difference of a lemon battery; how the potential difference occurs |
| 6 | Defining potential difference: V = E/Q which can cause current to flow |