This was a lesson on Quadrats for a Yr8 set 1 class. All resources required are included.
The quadrat task I printed on A3 paper and the quadrats on acetate.
DO NOT prepare nitrogen triiodide without undertaking a sufficient risk assessment of the method.
If you do prepare nitrogen triiodide I recommend practising the demo before using it with pupils.
I have provided a video clip if you are unsuccessful in preparing the demo or you don't have a functioning fume cupboard.
Powerpoint to demonstrate how to calculate the percentage composition of an element in a compound and some differentiated questions. There is also a support sheet for pupils who are struggling with calculating the Mr of a compound.