Standard Science Primary 3 Diversity

Siti placed a piece of toasted bread and a piece of damp bread in two identical sealed bags. After five days, she only saw mould on the damp bread. What can she conclude?

A Fungi need air to grow.
B Fungi need light to grow.
C Fungi can make their own food.
D Fungi need moisture to grow.
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Worked Solution

Step 1: Identify the changed variable (Moisture: Toasted vs Damp). Step 2: Observe the result (Mould only on damp bread). Step 3: Conclude that moisture is required for mould (fungi) growth.

Correct answer: Fungi need moisture to grow.

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