Lesson to accompany a practical making electromagnets

You are investigating how the strength of an electromagnet depends on the electric current passing through its coil. You are going to count the number of pins the electromagnet picks up when it has an increasing number of coils around it. You will complete:

Hypothesis (with explanation)
Independent, dependent and control variables
Equipment and diagram
Method
Results table
Graph
Conclusion
Evaluation

The lesson provides information, support and modelling at all stages of the investigation