Chapter 3: The Mystery of Food Short Questions | Environmental Science - EVS Class 5 CBSE

ByteNotes

Chapter 3: The Mystery of Food Short Questions | Environmental Science - EVS Class 5 CBSE | ByteNotes.in

Short Answer

Easy difficulty • Direct answer format

Easy

Question 1

Quick Recall

What changes did Disha observe in her forgotten uttapam?

Disha noticed that a foul smell was coming out of the tiffin box when she opened it.
She saw strange coloured patches appearing on the surface of her favourite food.
For example, food like bread or uttapam develops fuzzy spots when left in a closed box for many days.

ByteNotes

Short Answer

Easy difficulty • Direct answer format

Easy

Question 2

Quick Recall

What are microbes and how can we see them?

Microbes are tiny living things that are found everywhere in the air, water, and soil.
They are so small that they cannot be seen with the naked eye and require a microscope to be visible.
For instance, the mould we see on spoiled food is actually a large colony of thousands of these tiny microbes.

ByteNotes

Short Answer

Medium difficulty • Direct answer format

Medium

Question 3

Quick Recall

Name the three things that microbes need to grow on food.

Microbes require moisture or water to survive and multiply quickly.
They also need air and the right warm temperature to stay active.
An example is how bread spoils faster in a warm, damp place than in a dry, cold one.

ByteNotes

Short Answer

Medium difficulty • Direct answer format

Medium

Question 4

Quick Recall

How does sun-drying help in preserving food like chillies?

Drying food under the sun removes all the moisture present inside it.
Since microbes cannot grow without water, the dried food remains safe for a long time.
A common household example is drying red chillies on a mat to make chilli powder that lasts all year.

ByteNotes

Short Answer

Medium difficulty • Direct answer format

Medium

Question 5

Quick Recall

Why is oil added to pickle jars in Indian homes?

Oil acts as a barrier that stops air from reaching the food items inside the jar.
By keeping the air out, it prevents microbes from growing and spoiling the pickles.
For example, Disha's grandmother poured mustard oil over mangoes to keep them delicious for months.

ByteNotes

Short Answer

Easy difficulty • Direct answer format

Easy

Question 6

Quick Recall

How does a refrigerator protect our food items?

Refrigerators maintain a very cold temperature that is not suitable for microbe growth.
The cold temperature slows down the microbes so they cannot spoil the food quickly.
For instance, we keep milk and vegetables in the fridge to ensure they stay fresh for several days.

ByteNotes

Short Answer

Medium difficulty • Direct answer format

Medium

Question 7

Quick Recall

In what ways are some microbes helpful to humans?

Certain good microbes help us in the kitchen by making food items like curd.
They also live inside our bodies and help us digest the food we eat.
An everyday example is how microbes in the air help idli batter rise and become fluffy.

ByteNotes

Short Answer

Hard difficulty • Direct answer format

Hard

Question 8

Quick Recall

What is the difference between butter and ghee regarding storage?

Butter contains water and therefore needs to be kept in a refrigerator to stay fresh.
Ghee is made by heating butter until all the water evaporates, so it does not spoil easily at room temperature.
This is why a jar of ghee can stay on the kitchen shelf while butter must be kept in the fridge.

ByteNotes

Short Answer

Hard difficulty • Direct answer format

Hard

Question 9

Quick Recall

What did Vasco da Gama do related to Indian spices?

He was an explorer who crossed oceans to reach India specifically to collect black pepper.
In the past, black pepper was so popular as a preservative and spice that it was very valuable.
Like modern traders, he wanted to bring Indian spices to people in other parts of the world.

ByteNotes

Short Answer

Hard difficulty • Direct answer format

Hard

Question 10

Quick Recall

How do solitary wasps practice food preservation?

These insects have been preserving food for their young larvae since long before humans did.
They use their natural hunting skills to catch and store food so it stays fresh for their babies.
This shows that even tiny creatures in nature have their own clever ways to keep food from spoiling.

ByteNotes

Short Answer

Easy difficulty • Direct answer format

Easy

Question 11

Quick Recall

Why is it beneficial to eat seasonal fruits?

Seasonal fruits are the freshest and tastiest because they grow in their natural weather.
Waiting for the right season to eat them increases the joy and appreciation of the fruit.
For example, lychees are enjoyed most during the rainy season because that is when they are perfect.

ByteNotes

Short Answer

Medium difficulty • Direct answer format

Medium

Question 12

Quick Recall

What is the role of saliva in our mouth?

Saliva is released when we chew our food properly and it helps in the digestion process.
It moistens the food so it can be broken down easily and swallowed without trouble.
When you chew a piece of dry roti for a long time, you will notice more saliva making it mushy.

ByteNotes

Short Answer

Medium difficulty • Direct answer format

Medium

Question 13

Quick Recall

Name two functions of different types of teeth.

Incisors are the front teeth used for cutting into food like an apple.
Canines are pointed teeth used for tearing through tougher pieces of food.
Just as tools in a kit have different uses, our teeth work together to help us eat.

ByteNotes

Premium Access

Unlock all Short Questions

You are viewing 13 free short questions from this chapter. Upgrade to Premium to unlock the remaining 12 questions.

Upgrade to Premium12 questions locked

Chapter sections

Chapter 3: The Mystery of Food | Short Questions

What changes did Disha observe in her forgotten uttapam?

What are microbes and how can we see them?

Name the three things that microbes need to grow on food.

How does sun-drying help in preserving food like chillies?

Why is oil added to pickle jars in Indian homes?

How does a refrigerator protect our food items?

In what ways are some microbes helpful to humans?

What is the difference between butter and ghee regarding storage?

What did Vasco da Gama do related to Indian spices?

How do solitary wasps practice food preservation?

Why is it beneficial to eat seasonal fruits?

What is the role of saliva in our mouth?

Name two functions of different types of teeth.

Unlock all Short Questions