Students can use Our Wondrous World Class 5 Solutions Chapter 3 The Mystery of Food Class 5 Questions and Answers as a quick reference guide.
Class 5 EVS Chapter 3 The Mystery of Food Question Answer
The Mystery of Food Class 5 EVS Question Answer
Our Wondrous World Class 5 EVS Chapter 3 Question Answer – Class 5 EVS The Mystery of Food Question Answer
Think (Page 42)
Have you ever had an upset stomach? Do you know what could have caused it? What could happen if spoiled food is eaten by mistake? If yes, what did you do to get well? Share your experiences with the class.
Answer:
Yes, I have had an upset stomach before, and it was likely caused by eating contaminated or spoiled food. If spoiled food is eaten by mistake, harmful microorganisms like bacteria can enter our stomach and cause food poisoning. Symptoms may include stomach pain, diarrhea, vomiting and fever. To get well, I rested, drank plenty of fluids, and took the medicine prescribed by the doctor.
Write (Pages 42-44)
Why do you think food gets spoiled? (Page 42)
Answer:
Food gets spoiled because microbes grow on it and make it smell bad.
What other things are dried so that they remain unspoilt throughout the year? (Page 44)
Answer:
Chillies, fish, meat, papad, mango slices, and grapes (that later become raisins) are dried so they stay unspoiled throughout the year.
Activity 1 (Page 44)
What items can be made from mangoes to enjoy them for longer durations? Write their names in the space given below.
Answer:
Activity 2 (Page 45)
1. Take a tomato and cut it into slices.
2. Put the slices of tomatoes on a tray and place it on the window where the sunlight comes through.
3. What changes do you observe in fruit?
Answer:
First, the tomato slices start losing water and become dry and smaller in size. After longer time in the Sun, they shrink more, turn harder and may change colour.
Can you think of a way to preserve items like tomato?
Answer:
We can dry tomatoes, make tomato ketchup, or store them in airtight jars using the canning method to keep them safe from microbes.
Discuss (Page 45)
What would happen to this pickle if no oil had been added?
Answer:
If no oil is added to the pickle, air and water can easily enter its pores that help microbes like bacteria and fungi grow fast. They will spoil the pickle by making it slimy, smelly, and rotten. Oil acts like a shield. It covers the pickle and stops air and germs from touching it, so the pickle stays good for a long time.
Let us observe (Pages 45-46)
Why does butter need refrigeration and ghee does not?
Answer:
Butter needs refrigeration because it has water in it, and microbes can grow in water and spoil the butter. But ghee doesn’t have water, so microbes can’t grow easily, and that’s why it stays good without refrigeration.
Activity 3 (Page 46)
Find out about food preservation practices at your family by asking the elders at home. Write at least one such practice.
Answer:
There are many food preservation practices done by my family such as drying, freezing, making Jam and storing in airtight boxes etc. and a very common example is;
- Drying: We dry papads and mango slices in the Sun to store them for many months.
- Freezing: We keep peas and other vegetables in the freezer to stop them from spoiling.
- Making Jam: My mom makes mango and strawberry jam with lots of sugar, which helps keep it safe from microbes.
- Storing in Airtight Boxes: We keep snacks like chips and biscuits in airtight boxes so they stay crispy and fresh.
- Pickling: At my home, my grandma makes pickles and stores them in big jars with lots of oil and salt. This keeps the pickles safe from germs and they don’t spoil for many months.
Think (Page 48)
Did you ever have an upset stomach, vomiting or indigestion? Did you use any home remedies? Write about the home remedy given to you.
Answer:
Yes! Sometimes I get an upset stomach or feel like vomiting. My mom gives me warm water with a little black salt to drink, or she gives me jeera (cumin) water to sip slowly. It helps my stomach feel better. Sometimes she also gives me ginger with honey for nausea.
Activity 4 (Page 49)
Do you ever accompany your elders for buying vegetables and fruits? During such visits, observe how elders select fruits and vegetables in the market.
Write one thing that you learnt from your shopping trip and write it as a Finding \#9, the way Disha would write.
Answer:
Yes, I have accompanied my elders to the market on several occasions. During these trips, I observed how carefully they select fruits and vegetables. My grandmother always checks for the firmness and freshness of the items, while my father looks for the right colour and texture to determine ripeness.
One thing I learnt from these shopping trips is that they avoid buying overripe or damaged items. They prefer to choose fresh ones that will last longer and taste better.
Write (Page 50)
Name three seasonal fruits or vegetables of your region. For example, amla in winter and jamun in summer.
Answer:
Mangoes come in summer, strawberries come in winter, and carrots also grow in winter.
Activity 5 (Page 50)
When you eat, try chewing each item properly till it breaks down into smaller pieces and then into mush.
– Which teeth did you use to cut and chew? Look at the diagram and name them.
Answer:
I used my front teeth, called incisors, to cut the food, and my back teeth, called premolars to crush the food and molars, to chew the food.
Write (Page 53)
How can you avoid choking?
Answer:
Choking can be avoided by chewing food properly, not talking or laughing while eating, and taking small bites.
Let us reflect (Pages 53-54)
Question 1.
Why do some food items last for weeks and others spoil in just a few days?
Answer:
Some food items last for weeks because they are dry or they contain preservatives that stop microbes from growing. Others spoil in a few days because they have high moisture content and are fresh, which allows microbes to grow quickly on them so they spoil in just few days.
Question 2.
You are going on a field trip for two days. List five food items you will carry. How will you keep them from getting spoiled?
Answer:
I will take parathas, dry fruits, biscuits, pickle, and juice boxes. I’ll pack them in airtight containers or foil and keep them in a cool bag to stop them from spoiling.
Question 3.
What if food cannot be preserved? Imagine a world without food preservation and discuss the consequences.
Answer:
If food cannot be preserved, it will spoil very fast. People won’t be able to store food, so farmers will have to grow fresh food every day. Shops would run out of supplies quickly. A lot of food would be wasted because it would spoil. Travelling would be hard, as we can’t carry food for long trips. Many people might not get enough food to eat. Life would be much harder without food preservation.
Question 4.
Match the following.
Which method is used to preserve the following food items (A) to make the final product (B).
Answer:
| Item (A) | Methods of Preservation | Product (B) |
| Roti | Dehydration | Khakhra |
| Papad | Dried in sun | Dried papads |
| Mango | Dehydration / Drying | Aampapad |
| Lemon | Pickling | Lemon pickle |
| Butter | Heating / Clarifying | Ghee |
| Juice | Canning | Canned juice |
| Chillies | Drying and Grinding | Chilli powder |
| Fish | Drying and Salting | Dried fish |