Module Workbook

Module 12: Chemistry

Electrochemistry and energy changes.

Use this workbook to practice core KCSE communication skills and record evidence of progress.

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SECTION: CHEMISTRY

MODULE: 12

Part A: Units

1. Electrochemistry (1)

a. Electrolysis

b. Electrolytes and non-electrolytes

c. Conductivity of substances

d. Applications of electrolysis

2. Energy changes in chemical reactions

a. Exothermic reactions

b. Endothermic reactions

c. Energy level diagrams

Part B: Project

Explore electrolysis and energy changes in reactions.

Project Title: Electrolysis and Energy Changes

Objective: Describe electrolysis processes and classify reaction energy changes.

Project Instructions:

1. Draw a simple electrolysis setup and label parts.
2. Identify one electrolyte and one non-electrolyte with reasons.
3. List two applications of electrolysis.
4. Give one exothermic and one endothermic reaction example.
5. Draw a basic energy level diagram for one reaction.
6. Consult your coach where necessary.

Evidence to Submit:

• Electrolysis diagram and notes.
• Electrolyte vs non-electrolyte examples.
• Energy change examples and diagram.

Submission

Part C: Training Others

Teach a peer about electrolysis and energy changes.

Guidance:

• Explain electrolysis with a simple diagram.
• Compare electrolytes and non-electrolytes.
• Use examples to classify exothermic and endothermic reactions.

Reflection:

• What did the learner understand well?
• What needed more explanation?
• What support do you need from your coach?

Submission

Part D: Assessment

Competency Levels:

1 = Expectations not met

2 = Partially met

3 = Satisfactorily met

4 = Excellently met

Coach assessment: Learner completes the self-assessment using the 1-4 scale. The coach prepares a short quiz or conversation (outside the system if needed) and assigns the coach score.

Self-assessment:

• Electrolysis concepts:
• Electrolytes and conductivity:
• Energy changes and diagrams:

Coach assessment:

• Electrolysis concepts:
• Electrolytes and conductivity:
• Energy changes and diagrams:

Submission

Ready for the next module?

Keep your learning rhythm steady and record your reflections as you progress.

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