1- Lesson overview

2- Pre-assessment

3- Investigate

4- Individual Work (Scientists)

6- Choice board

7- Post-assessment

8- Reflection

• Identify and describe the factors that affect the rates of chemical reactions: concentration, temperature, surface area, and catalysts.

• Analyze how these factors influence reaction rates through observations and experiments.

Terminologies:

• Reaction Rate

• Concentration

• Surface Area

• Catalyst

https://gizmos.explorelearning.com/find-gizmos/launch-gizmo?resourceId=553

1- Which chemical increases temperature, and which chemical decreases temperature during a reaction?

2- What do the terms "endothermic" and "exothermic" mean in relation to chemical reactions?

3-How does changing the concentration of reactants affect the temperature change observed in the reaction?

4-What effect does increasing the surface area of a solid reactant have on the reaction rate, as observed in the simulation?

5-How does the addition of a catalyst impact the temperature change and speed of the reaction in the simulation?

6-What observations can you make about the energy changes in reactions when the temperature rises versus when it falls?

7-In the simulation, what patterns do you notice regarding temperature changes when different types of reactants are combined?

8-How can you determine if a reaction is endothermic or exothermic based on temperature data from the simulation?

Essay Question:

1. What factors influence the rate of a chemical reaction? Describe at least two factors and explain how each affects the speed of the reaction. Provide a simple example for each factor.

1. When a catalyst is added to a reaction, what is the expected effect on the reaction rate?
   A) The reaction rate decreases.
   B) The reaction rate increases without being consumed in the reaction.
   C) The catalyst changes the products of the reaction.
   D) The reaction rate remains unchanged.

Essay Question:

1. Using the principles of collision theory, explain how concentration and temperature affect the rate of a chemical reaction. Discuss the molecular interactions that occur and how these principles apply to real-world scenarios, such as industrial chemical processes or everyday cooking.

1. How does increasing the temperature affect the rate of a reaction?
   A) It decreases the reaction rate.
   B) It has no effect on the reaction rate.
   C) It increases the reaction rate by giving particles more energy.
   D) It only affects gaseous reactions.

Essay Question:

1. Discuss how the surface area of a reactant influences the rate of a chemical reaction. Provide an example that illustrates this relationship, and explain the molecular reasoning behind it.