F'3 Report Writing

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F.3 Report Writing Workshop I
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Limestone
What ions does it contain?
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Limestone contains
Calcium ion
Carbonate ion
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How can we test their presence?
Calcium ion
Flame Test
Carbonate ion
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Q How do we record the above tests ?
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What are the features of an experimental report?
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Task Compare the two reports and find
out the features of an experimental
report. (10 mins)
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An experimental report should contain ..

• 1. Title
• 2. Purpose
• 3. Chemical Reactions Involved
• 4. Apparatus and Reagents Used
• 5. Procedures
• 6. Observation
• 7. Conclusion
• 8. Discussion

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If we are going to write an experimental report
about the test of limestone, we should include

• 1. Title
• Chemical test of Limestone

• 2. Purpose
• To identify the chemical composition of limestone

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• 3. Chemical Reactions Involved

Flame Test
Other examples
Copper ion
Sodium ion
Calcium ion
Potassium ion
Golden yellow
Bluish green
Brick red
Lilac
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• 3. Chemical Reactions Involved

Carbonate
Other example
Chloride
Silver nitrate solution with dilute nitric acid
? milky
Dry Cobalt(II) chloride paper Blue to pink
Water
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• 4. Apparatus and Reagents Used

• Platinum wire x 1
• Test tube x 2
• Evaporating dishes x 1
• 12 M Concentrated hydrochloric acid etc

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• 5. Procedures

Task Write down the procedures of the flame
test of calcium ion in a sample.
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• 5. Procedures

• Dip the platinum wire into a test tube of
  concentrated hydrochloric acid and then heat it
  in the hottest part of the Bunsen flame until no
  characteristic colour is shown.
• After the cleaning, dip the wire into the
  concentrated hydrochloric acid again and then
  into the white solid.
• Heat the solid sample on the wire in the hottest
  part of the non-luminous flame.
• Observe and record the colour of the flame.

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Video of flame test
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Grammar features in an experimental report

• Past tense
• Passive voice

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• 5. Procedures in an experimental report

1. The platinum wire was dipped into a test
tube of concentrated hydrochloric acid and then
heated in the hottest part of the Bunsen flame
until no characteristic colour was
shown. 2. After the cleaning, the wire was
dipped into the concentrated hydrochloric acid
again and then into the white solid. 3. The
solid sample on the wire was heated in the
hottest part of the non-luminous flame. 4. The
colour of the flame was observed and recorded.