Simple activity that shows conservation of mass through calculations. The use of equations with state symbols challenges students to think of situations where mass ‘appears’ to increase or decrease.

Assess knowledge of bonding, structure and properties of substances through trial and error.

A set of slides to help you plan a neutralisation investigation as well as carry out evaluation focusing on mean calculations and graph skills.

Conservation of mass and balanced chemical equations The first lesson as part of AQA quantitative chemistry for GCSE chemistry. Complete lesson with associated practice questions

Lesson that identifies examples of inherited variation opposed to environmental examples, and distinguishes between continuous and discontinuous variation.

Complete lesson and worksheets for electrolysis required practical. Can be adapted to cater for higher or foundation level. Solutions can be found on the resource (Half equations and electrolysis of aqueous solutions). Chemical Changes as per AQA combined science and GCSE chemistry.

This lesson allows the students to see that ALL electrophilic substitution reactions of benzene progress by the same mechanism: 1 - formation of the electrophile in situ; 2 - attack of the electrophile on the ring; 3 - reformation of the catalyst. 6.1.1 (d) The electrophilic substitution of aromatic compounds with: (i) concentrated nitric acid in the presence of concentrated sulfuric acid (ii) a halogen in the presence of a halogen carrier

This lesson looks at how scientific knowledge develops over time as more evidence becomes available. It is also a chance to review the shapes of atomic orbitals as it builds on knowledge of side-on overlap of the p-orbitals to form the delocalised pi ring of electrons. Students meet the arenes in year 12, but only in passing, so they will have little idea as to the molecular and structural formula of benzene.