Class 5 Environmental Studies Chapter 3: The Mystery of Food — practice questions with answers
Free practice for Class 5 Environmental Studies, Chapter 3: The Mystery of Food. Try the solved questions below, then take a free test with instant marking and explanations.
31 questions12 easy, 12 medium, 7 hardNCERT · CBSE · State boards
Sample questions with solutions
Q1. What did Disha find in the lunch box she had forgotten at school?
- Uttapam with coloured patches
- Fresh idlis
- A mango pickle
- Dry chillies
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Answer: A. Uttapam with coloured patches
Why: Disha found her uttapam, left for three days, with coloured patches and a foul smell. [p.40]
Why: Disha found her uttapam, left for three days, with coloured patches and a foul smell. [p.40]
Q2. What are the coloured patches on spoiled food called?
- Mould
- Pickle
- Saliva
- Wax
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Answer: A. Mould
Why: Aditya Anna explains the patches are mould — a colony of thousands of microbes. [p.41]
Why: Aditya Anna explains the patches are mould — a colony of thousands of microbes. [p.41]
Q3. Which instrument do we need to see microbes?
- A microscope
- A telescope
- A thermometer
- A magnifying glass only
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Answer: A. A microscope
Why: Microbes are so tiny that you need an instrument called a microscope to see them. [p.41]
Why: Microbes are so tiny that you need an instrument called a microscope to see them. [p.41]
Q4. How does a fridge keep food from spoiling quickly?
- Its cold temperature slows down microbes
- It removes all air from the food
- It dries the food
- It adds salt to food
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Answer: A. Its cold temperature slows down microbes
Why: Appa explains that fridges make it too cold for microbes to grow; Finding #5 says cold slows them down. [p.45–46]
Why: Appa explains that fridges make it too cold for microbes to grow; Finding #5 says cold slows them down. [p.45–46]
Q5. Which of these is a product made from mangoes to enjoy them for longer?
- Aam papad
- Khakhra
- Chilli powder
- Ghee
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Answer: A. Aam papad
Why: The chapter’s match shows mango made into aam papad by drying. [p.44, p.54]
Why: The chapter’s match shows mango made into aam papad by drying. [p.44, p.54]
Q6. In food factories, food is preserved in air-tight cans and packaging.
True or false?
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Answer: True
Why: Finding #6: food factories preserve food in air-tight cans and packaging to keep microbes away. [p.47]
Why: Finding #6: food factories preserve food in air-tight cans and packaging to keep microbes away. [p.47]
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How many practice questions are there for Class 5 Environmental Studies Chapter 3: The Mystery of Food?
31 questions (12 easy, 12 medium, 7 hard). A few are solved on this page; the free test shows the answer and explanation for every question after you submit.
Is this chapter from the NCERT book?
Yes — it follows the NCERT Class 5 Environmental Studies syllabus, used by CBSE and many state boards.