Outline lesson plan

• Discuss the importance of rate of reaction and define fast and slow reactions.
• Define rate of reaction and use demonstration of the reaction between CaCO₃ and acid to plot a graph. Use the gas syringe or upturned measuring culinder to follow the reaction.
• Students should understand why the graph goes through the origin.

• Go through the main factors affecting the rate of a reaction.
• Explain how collision theory describes the effect of changing the factors affecting the rate of reaction.
• www.bbc.co.uk/learningzone/clips/collision-theory-and-rates-of-reaction/10668.html

• Which burns faster, Mg ribbon or powder. Ask students to explain why the Mg powder burnt faster.
• Students to design an investigation to test their theory with marble chips and acid by following their loss of mass. Show students the different size chips. Include dependent and independent variables.

• Demonstration of squash. Dilute half of the squash and then pose the question, which is the most concentrated. Pupils need to come up with a definition for concentration.
• Explain the difference between a concentrated solution and a dilute solution. Diagrams may help.
• Practical Investigating the effect of concentration

• Anagrams of all the key words used in the topic. Rate, temperature, concentration, collisions, pressure. Demonstrate Precipitation of Sulphur in practical activity.
• Practical Effect of temperature on rates
• Discuss the existence of anomalous results and the limitations of the procedure in using a subjective procedure.

• Go through with students the definition of a catalyst concentrating on the concept that it cannot be used up in the reaction. Explain how a catalyst works in terms of collision theory and activation energy.
• Practical The effects of Catalysts on reaction rate
• Use of Enzymes as catalysts

• Review topic by going through concept map
• Reinforce the interpretation of graphs