Chapter - Mangoes Round the Year, NCERT Textbook of CBSE Class 5 EVS (Environmental Science) Class 5 Notes | EduRev

EVS Class 5

Class 5 : Chapter - Mangoes Round the Year, NCERT Textbook of CBSE Class 5 EVS (Environmental Science) Class 5 Notes | EduRev

 Page 1


Mangoes Round the Year 35
Discuss
 How did Aman know that the potato sabzi had got
spoilt?
 Have you ever seen some food that has got spoilt?
How did you know that it was spoiled?
 Preeti told Nitu not to eat the potato sabzi. What
would have happened if she had eaten it?
Teacher’s Note : Let children give examples of food spoilage based on their own
experiences. It is important to explain the difference between food spoilage and
wastage of food. The experiment with bread can be started when you begin the
lesson, because it will need to continue over six days at least.
4. Mangoes Round the Year
Hey, today
Nitu has
brought
potato sabzi.
Wow! Aman’s
lunch box has
sweet puries.
Nitu
Aman
Preeti
I have got
bhindi.
Don’t eat that. You
may fall sick. Here,
you take some
bhindi.
Nitu
Aman
Preeti
Oh! Nitu, I think
your potato
sabzi is spoilt.
Page 2


Mangoes Round the Year 35
Discuss
 How did Aman know that the potato sabzi had got
spoilt?
 Have you ever seen some food that has got spoilt?
How did you know that it was spoiled?
 Preeti told Nitu not to eat the potato sabzi. What
would have happened if she had eaten it?
Teacher’s Note : Let children give examples of food spoilage based on their own
experiences. It is important to explain the difference between food spoilage and
wastage of food. The experiment with bread can be started when you begin the
lesson, because it will need to continue over six days at least.
4. Mangoes Round the Year
Hey, today
Nitu has
brought
potato sabzi.
Wow! Aman’s
lunch box has
sweet puries.
Nitu
Aman
Preeti
I have got
bhindi.
Don’t eat that. You
may fall sick. Here,
you take some
bhindi.
Nitu
Aman
Preeti
Oh! Nitu, I think
your potato
sabzi is spoilt.
36 Looking Around
Biji returned the bread
Aman’s Biji went to the market to buy bread. The shop was
very crowded. The shopkeeper picked up a packet of bread
and gave it to Biji. She looked at it and returned it immediately.
 Look at the picture of the bread packet here and guess
why Biji returned it? How did she find that the bread had
got spoilt?
Find out
Look carefully at two-three packets of food items:
 What can we know from what is written on the packet?
 When you buy anything from the market, what do you
look for on the packet?
Write
 Look in your kitchen and write down names of food items
that
- can get spoilt in 2-3 days
- can be kept for a week
- would not spoil till one month
 Look at your friend’s list and discuss in the class.
 Will your list be the same in all seasons? What would
change?
 When food gets spoilt in your house, what do you do
with it?
Teacher’s Note : Help children to read and note the information on the packets
regarding weight, date of packing etc. While doing the experiment precautions
need to be taken depending on the weather conditions – e.g. the bread should not
be allowed to dry up, there should be some ventilation in the room. Do put up the
chart in the classroom and remind the children to fill it in every day.
Page 3


Mangoes Round the Year 35
Discuss
 How did Aman know that the potato sabzi had got
spoilt?
 Have you ever seen some food that has got spoilt?
How did you know that it was spoiled?
 Preeti told Nitu not to eat the potato sabzi. What
would have happened if she had eaten it?
Teacher’s Note : Let children give examples of food spoilage based on their own
experiences. It is important to explain the difference between food spoilage and
wastage of food. The experiment with bread can be started when you begin the
lesson, because it will need to continue over six days at least.
4. Mangoes Round the Year
Hey, today
Nitu has
brought
potato sabzi.
Wow! Aman’s
lunch box has
sweet puries.
Nitu
Aman
Preeti
I have got
bhindi.
Don’t eat that. You
may fall sick. Here,
you take some
bhindi.
Nitu
Aman
Preeti
Oh! Nitu, I think
your potato
sabzi is spoilt.
36 Looking Around
Biji returned the bread
Aman’s Biji went to the market to buy bread. The shop was
very crowded. The shopkeeper picked up a packet of bread
and gave it to Biji. She looked at it and returned it immediately.
 Look at the picture of the bread packet here and guess
why Biji returned it? How did she find that the bread had
got spoilt?
Find out
Look carefully at two-three packets of food items:
 What can we know from what is written on the packet?
 When you buy anything from the market, what do you
look for on the packet?
Write
 Look in your kitchen and write down names of food items
that
- can get spoilt in 2-3 days
- can be kept for a week
- would not spoil till one month
 Look at your friend’s list and discuss in the class.
 Will your list be the same in all seasons? What would
change?
 When food gets spoilt in your house, what do you do
with it?
Teacher’s Note : Help children to read and note the information on the packets
regarding weight, date of packing etc. While doing the experiment precautions
need to be taken depending on the weather conditions – e.g. the bread should not
be allowed to dry up, there should be some ventilation in the room. Do put up the
chart in the classroom and remind the children to fill it in every day.
Mangoes Round the Year 37
 Find out the reason for these changes. From where did the
fungus come on the bread?
 Different kinds of food items spoil due to different reasons.
Some foods spoil soon, some stay good for long. List some
seasons and conditions in which food spoils quickly.
How does food get spoilt?
The whole class can do this
experiment together. Take a piece of
bread or roti. Sprinkle a few drops of
water on it, and put it in a box. Close
the box. See the bread or roti
everyday until you find some
changes on it.
Make this table on a chart paper
and put it up in the classroom.
Fill up the chart every day after
discussing the changes seen.
Day Changes in the bread or roti
By touch By smell By looking through By colour
hand lens
1.
2.
3.
4.
5.
6.
Page 4


Mangoes Round the Year 35
Discuss
 How did Aman know that the potato sabzi had got
spoilt?
 Have you ever seen some food that has got spoilt?
How did you know that it was spoiled?
 Preeti told Nitu not to eat the potato sabzi. What
would have happened if she had eaten it?
Teacher’s Note : Let children give examples of food spoilage based on their own
experiences. It is important to explain the difference between food spoilage and
wastage of food. The experiment with bread can be started when you begin the
lesson, because it will need to continue over six days at least.
4. Mangoes Round the Year
Hey, today
Nitu has
brought
potato sabzi.
Wow! Aman’s
lunch box has
sweet puries.
Nitu
Aman
Preeti
I have got
bhindi.
Don’t eat that. You
may fall sick. Here,
you take some
bhindi.
Nitu
Aman
Preeti
Oh! Nitu, I think
your potato
sabzi is spoilt.
36 Looking Around
Biji returned the bread
Aman’s Biji went to the market to buy bread. The shop was
very crowded. The shopkeeper picked up a packet of bread
and gave it to Biji. She looked at it and returned it immediately.
 Look at the picture of the bread packet here and guess
why Biji returned it? How did she find that the bread had
got spoilt?
Find out
Look carefully at two-three packets of food items:
 What can we know from what is written on the packet?
 When you buy anything from the market, what do you
look for on the packet?
Write
 Look in your kitchen and write down names of food items
that
- can get spoilt in 2-3 days
- can be kept for a week
- would not spoil till one month
 Look at your friend’s list and discuss in the class.
 Will your list be the same in all seasons? What would
change?
 When food gets spoilt in your house, what do you do
with it?
Teacher’s Note : Help children to read and note the information on the packets
regarding weight, date of packing etc. While doing the experiment precautions
need to be taken depending on the weather conditions – e.g. the bread should not
be allowed to dry up, there should be some ventilation in the room. Do put up the
chart in the classroom and remind the children to fill it in every day.
Mangoes Round the Year 37
 Find out the reason for these changes. From where did the
fungus come on the bread?
 Different kinds of food items spoil due to different reasons.
Some foods spoil soon, some stay good for long. List some
seasons and conditions in which food spoils quickly.
How does food get spoilt?
The whole class can do this
experiment together. Take a piece of
bread or roti. Sprinkle a few drops of
water on it, and put it in a box. Close
the box. See the bread or roti
everyday until you find some
changes on it.
Make this table on a chart paper
and put it up in the classroom.
Fill up the chart every day after
discussing the changes seen.
Day Changes in the bread or roti
By touch By smell By looking through By colour
hand lens
1.
2.
3.
4.
5.
6.
38 Looking Around
Food items Methods
Milk Put in a bowl and keep the bowl in a
container with some water.
Cooked rice Wrap in a damp cloth.
Green coriander (Dhania) Boil it.
Onion, garlic Keep it in a dry open place.
 Given below are some food items and some simple methods
by which these could be kept fresh for 1-2 days. Match the
correct pairs:
38
Summer treat – Mamidi tandra
Chittibabu and Chinnababu live in Atreyapuram town in Andhra
Pradesh. The brothers spend the summer holidays playing in
the mango garden, when the trees are full of fruits. They also
like to eat unripe mangoes with salt and chilly powder.
At home, their mother cooks unripe mangoes in different
ways. She also makes many kinds of mango pickles. The pickles
last through the year until the next mango season.
One evening, while having food Chinnababu asked, “Amma,
we have so many mangoes. Make some mamidi tandra (aam
papad) from them.”
Their father said, “Making mamidi tandra needs four weeks of
hardwork. If you both promise to help us everyday for the next
four weeks, we can together make the mamidi tandra.”
Both the brothers quickly agreed to help. The next day both
the children went to the market with their father. They bought
a mat woven from the leaves of a palm tree, poles of casuarina
tree, string made of coconut husk, some jaggery and sugar.
Page 5


Mangoes Round the Year 35
Discuss
 How did Aman know that the potato sabzi had got
spoilt?
 Have you ever seen some food that has got spoilt?
How did you know that it was spoiled?
 Preeti told Nitu not to eat the potato sabzi. What
would have happened if she had eaten it?
Teacher’s Note : Let children give examples of food spoilage based on their own
experiences. It is important to explain the difference between food spoilage and
wastage of food. The experiment with bread can be started when you begin the
lesson, because it will need to continue over six days at least.
4. Mangoes Round the Year
Hey, today
Nitu has
brought
potato sabzi.
Wow! Aman’s
lunch box has
sweet puries.
Nitu
Aman
Preeti
I have got
bhindi.
Don’t eat that. You
may fall sick. Here,
you take some
bhindi.
Nitu
Aman
Preeti
Oh! Nitu, I think
your potato
sabzi is spoilt.
36 Looking Around
Biji returned the bread
Aman’s Biji went to the market to buy bread. The shop was
very crowded. The shopkeeper picked up a packet of bread
and gave it to Biji. She looked at it and returned it immediately.
 Look at the picture of the bread packet here and guess
why Biji returned it? How did she find that the bread had
got spoilt?
Find out
Look carefully at two-three packets of food items:
 What can we know from what is written on the packet?
 When you buy anything from the market, what do you
look for on the packet?
Write
 Look in your kitchen and write down names of food items
that
- can get spoilt in 2-3 days
- can be kept for a week
- would not spoil till one month
 Look at your friend’s list and discuss in the class.
 Will your list be the same in all seasons? What would
change?
 When food gets spoilt in your house, what do you do
with it?
Teacher’s Note : Help children to read and note the information on the packets
regarding weight, date of packing etc. While doing the experiment precautions
need to be taken depending on the weather conditions – e.g. the bread should not
be allowed to dry up, there should be some ventilation in the room. Do put up the
chart in the classroom and remind the children to fill it in every day.
Mangoes Round the Year 37
 Find out the reason for these changes. From where did the
fungus come on the bread?
 Different kinds of food items spoil due to different reasons.
Some foods spoil soon, some stay good for long. List some
seasons and conditions in which food spoils quickly.
How does food get spoilt?
The whole class can do this
experiment together. Take a piece of
bread or roti. Sprinkle a few drops of
water on it, and put it in a box. Close
the box. See the bread or roti
everyday until you find some
changes on it.
Make this table on a chart paper
and put it up in the classroom.
Fill up the chart every day after
discussing the changes seen.
Day Changes in the bread or roti
By touch By smell By looking through By colour
hand lens
1.
2.
3.
4.
5.
6.
38 Looking Around
Food items Methods
Milk Put in a bowl and keep the bowl in a
container with some water.
Cooked rice Wrap in a damp cloth.
Green coriander (Dhania) Boil it.
Onion, garlic Keep it in a dry open place.
 Given below are some food items and some simple methods
by which these could be kept fresh for 1-2 days. Match the
correct pairs:
38
Summer treat – Mamidi tandra
Chittibabu and Chinnababu live in Atreyapuram town in Andhra
Pradesh. The brothers spend the summer holidays playing in
the mango garden, when the trees are full of fruits. They also
like to eat unripe mangoes with salt and chilly powder.
At home, their mother cooks unripe mangoes in different
ways. She also makes many kinds of mango pickles. The pickles
last through the year until the next mango season.
One evening, while having food Chinnababu asked, “Amma,
we have so many mangoes. Make some mamidi tandra (aam
papad) from them.”
Their father said, “Making mamidi tandra needs four weeks of
hardwork. If you both promise to help us everyday for the next
four weeks, we can together make the mamidi tandra.”
Both the brothers quickly agreed to help. The next day both
the children went to the market with their father. They bought
a mat woven from the leaves of a palm tree, poles of casuarina
tree, string made of coconut husk, some jaggery and sugar.
Mangoes Round the Year 39
Amma found a sunny place in the backyard. Both the brothers
made a high platform by using poles. They spread out and tied
the mat on that platform.
The next day, Appa chose the most ripe mangoes. They took
out the mango pulp into a large pot. Then they strained the
pulp through a fine muslin cloth, to remove the fibres from the
pulp. Then Chittibabu crushed the gur (jaggery) till there were
no lumps. They added the jaggery and sugar in equal amounts
39
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