Grade 7 -Complete the evaluation. The deadline to hand in the investigation is the START of next lesson. This video of what I did in class to explain the evaluation may help.
Grade 8 - if you have not yet completed your purpose, apparatus, plan/method and variables section these must be done. If you can work on the graph at home this would be helpful: the idea is that you only do the conclusion and evaluation next lesson and then you will have no have no homework over the autumn break as you will have completed the investigation.
Grade 9 - Both groups: complete the table of currents, kWh and costs from the lesson