Standard Science Primary 3 Diversity

Jun Jie placed a piece of toasted bread and a piece of fresh, damp bread in two separate sealed bags. Where will mould likely grow first?

A On the toasted bread because it is warm.
B On both at the same time because they are in bags.
C On the fresh, damp bread because it has moisture.
D On neither because the bags are sealed.
Show Worked Solution

Worked Solution

Step 1: Recall the conditions for fungi growth: Air, Food, and Moisture. Step 2: Toasted bread is dry; fresh damp bread has moisture. Step 3: Mould grows faster in moist conditions.

Correct answer: On the fresh, damp bread because it has moisture.

Want more questions like this? Superholic Lab has 10,000+ MOE-aligned questions with full worked solutions.

Start Free Trial — 7 Days Free