Worksheet – Chapter 3: The Mystery of Food (Food
Spoilage)
A. Fill in the blanks:
1. The forgotten uttapam had ______ patches.
2. ______ are tiny living organisms that spoil or help food.
3. Microbes can be seen only with the help of a ______.
B. True / False:
1. Disha’s uttapam was spoiled by dust. (True/False)
2. Some microbes help in digesting food. (True/False)
3. All microbes are harmful. (True/False)
C. Multiple Choice Questions:
1. What is mould?
(a) A type of spice (b) Microbes growing on food (c) A cooking method
2. Which instrument helps us to see microbes?
(a) Telescope (b) Microscope (c) Magnifying glass
D. Match the following:
      1. Curd                                       a) See microbes
      2. Microscope                                 b) Foul smell and coloured patches
      3. Spoiled uttapam                            c) Made by microbes
E. Answer in 1–2 sentences:
1. Why do food items change smell and taste after some time?
2. Give one example of a useful microbe.
3. What did Disha learn from her spoiled uttapam?
F. Activity:
Observe any food item at home (like bread, fruit, or cooked food) after keeping it for 2–3 days. Note
down if there is any change in smell, colour, or patches.