Standard Science Primary 3 Diversity

Siti observed that a plant in a sealed jar of water died after two weeks, even though it had plenty of sunlight and air. What was the most likely reason?

A The plant could not reproduce.
B The plant had too much sunlight.
C The plant had no food.
D The plant ran out of nutrients in the water.
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Worked Solution

Step 1: Identify that the plant has air and light (needs for photosynthesis). Step 2: Living things also need nutrients to stay healthy. Step 3: In a jar of plain water, mineral salts are eventually depleted. Step 4: Final Answer: The plant ran out of nutrients.

Correct answer: The plant ran out of nutrients in the water.

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