Foundation Science Primary 6 Energy

Which of the following is the correct word equation for photosynthesis?

A Water + Oxygen → (Chlorophyll) → Carbon dioxide + Sugar
B Oxygen + Sugar → Carbon dioxide + Water + Energy
C Carbon dioxide + Water → (Light/Chlorophyll) → Sugar + Oxygen
D Carbon dioxide + Oxygen → (Light) → Water + Sugar
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Worked Solution

Step 1: Recall that plants need carbon dioxide and water for photosynthesis. Step 2: Understand that light and chlorophyll are required to drive the process. Step 3: The products of photosynthesis are sugar (food) and oxygen. Step 4: The correct equation is Carbon dioxide + Water → Sugar + Oxygen.

Correct answer: Carbon dioxide + Water → (Light/Chlorophyll) → Sugar + Oxygen

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