I have made a PPT covering the principles of calculating energy change of reactions. My many years of experience I have noticed that question is done very poorly by many learners, many through simple mistakes that can be rectified very easily. I also covered the 3 main situations that are required. For each one I have explained the use of the equation required: ΔE = m c ΔT and then explained an example of each one. This question comes almost EVERY year in AS and A2 exam papers so it worth looking at. Use it as a complete lesson and then follow up with many compiled question from past papers. All the best. Your comments and reviews are welcomed. If there is anything you like me to cover and prepare is also welcome. Any review and a contact email will be rewarded with ANY one resource you like FREE of charge.

This resource worked well with my students when it came to understanding Distillation & Reflux experiment setup. In the power point there will be a handout to print (the last slide) and then an animated slide that reveals the answers one by for the teacher to explain EACH step/point of the process. The rest of the animated slides make it very clear where students make the most common mistakes during the experiment. The final slide are 4 KEY points summarised in case students have missed them during the lesson. e.g WRONG SET UP (1) – REFLUX & DISTILLATION WRONG SET UP (2) – DISTILLATION WRONG SET UP (3) – REFLUX OVER HEATING (4) – REFLUX & DISTILLATION

This recent Power Point, with animation, I have created to make it easy to cover the MAIN points on this topic. Many books make it too complicated for non-physicist !. It contains 5 slides that covers the basic from SHE to Cell notation. Then another 4 slides which goes through slowly an exam question, including the official mark linked to the worked out answer. The last 3 three must be printed out as a worksheet for students to annotate or write on as the first 5 slides are explained as shown.

As mentioned above another PPT that shows clearly students how to tackle Hess’ Law questions. Explaining vectors for the NON-MATHS learners - followed by simple examples and one exam style question.