This lesson introduces student to the concepts of relative atomic mass and relative formulae and uses this as a platform to introduce calculation of empirical formulae. The calculation of empirical formulae is introduced through a methodical tabled approach which students can master readily and then attempt with out the framework. They then get to practice their calculation on a made up compound made of sweets. If they get the empirical formula correct they get to eat the sweets. Save yourself some time and grab a bargain.

The start of this lesson involves a BIG write where students are provided with information on the water poisoning incident at Camelford and are asked with success criteria to explain how they could test to see if the water was safe to drink using knowledge from previous lessons in this topic. The second half of this lesson involves a learning check to see who is confident with writing and balancing symbol equations. On the back of this check confident students compete in a race with other groups of confident students to balance a series of ever increasingly hard equations. Students who are less confident work with the teachers in a focus group on balancing equation. I used this for an observed lesson and it worked really well. Save yourself some time and hassle and grab yourself a bargain.

Lesson 1 looks at investigating through a practical why some waters lather better than others and concludes with a BIG write/6 mark question that has success criteria which can be readily marked by yourself or the students. Lesson 2 - Introduces students to the idea of calculating concentrations of solute in solutions. All worksheets are provided. Save yourself some time and grab a bargain.

This group of powerpoints covers the Edexcel (9-1) specification for the electrolytic processes and covers all of the outcomes covered in the spec for this topic. N.B Many of the lessons include built in worksheets that can easily be printed off. Grab yourself a bargain and save yourself loads of time. Thanks for looking Jon