Page 233 - SUBSEC October 2017_Neat
P. 233
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2. You are provided with the following apparatus and materials.
• Water bath
• Thermometer
• Elodea shoot
• Test tubes
• Sodium hydrogen carbonage solution DO NOT WRITE IN THIS AREA
• Apparatus for measuring gas
• Meter rule
• 100 W lamp
Use the apparatus above to plan and design an experiment to test the following observation:
Water plants evolve large volumes of gas when placed in a well illuminated area.
(a) Suggest a suitable hypothesis based on the observation given.
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[2 marks]
(b) Write a suitable aim based on the hypothesis.
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[1 mark] DO NOT WRITE IN THIS AREA
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