The Scenario

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Project Learning in Chemistry

• Key Issue To make the school become a
  green environment
• TopicWhy are some plants not healthy
• Grade level Secondary 4

CHAN KA YIN (BUDDHIST TAI HUNG COLLEGE)
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The Scenario

• related to their daily life
• interesting
• related to the students study.
• Role play

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How to test the soil

• Their proposal
• pH paper
• pH meter
• Litmus paper
• Universal indicator
• Soil test kit

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Carry out their experiment
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Condition of the plant
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To improve the soil

• Neutralization
• Fertilizer

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Paper Chromatography

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Presentation
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Final Condition of the Plant

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Educational Objectives

• Students are expected to achieve the following
• 1.  Preparing a plan of work for testing soil
  pH.
• 2. Communicating orally through participation in
  group work
• 3. Conducting experiment to test soil pH by
  using their plan.
• 4. Ability to use previously acquired background
  knowledge to solve the soil problem.

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• 5. Able to justify the range of pH for growing
  healthy plant.
• 6. Able to make a green environment.
• 7. Devising and conducting experiment for making
  their own fertilizers.
• 8. Understanding some experimental skills in
  doing paper chromatography.
• 9. Cooperating as a member of a group.

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Scientific concepts involved

• 1.  Acid and Base concept
• 2.  The pH value
• 3.  Neutralization
• 4.  Fertilizer
• 5.  Paper chromatography

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Students Task

• 1. Through the Internet or library search to
  find information and discuss with your group
  members for testing the soil pH. (Around Oct
  Nov)
• 2. Present your proposal for testing the soil
  pH (At the end of Nov)
• 3. Actualizing your proposal in doing experiment
  for testing the soil pH (Around Dec)
• 4. Take photographs of your group in doing
  experiments

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• 5. An experimental report of the experiment in
  testing the soil pH. (Before the end of the 1st
  term)
• 6. Growing your plant
• 7. Find solution to improve the soil
• 8. Discuss with your group members in order to
  devise and do an experiment of making fertilizer
  and do the report (Around Jan Feb)
• 9.  Use the leaves of your plant to do paper
  chromatography and do the report (Mar)

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• 10. Regular observation and care for your plant
  is needed. Take photographs of your growing
  plants at regular time.
• 11. Present your whole process of doing
  such a project (May)