PPT: Methods of Separation in Everyday Life | Science for Class 6 PDF Download

 Page 1


Metod of 
Separatio i 
Everyday Life
Just like winnowing makes the husk blow away while retaining the 
grains, similarly, sages let the virtues stay while discarding the vices. —
Kabir
Page 2


Metod of 
Separatio i 
Everyday Life
Just like winnowing makes the husk blow away while retaining the 
grains, similarly, sages let the virtues stay while discarding the vices. —
Kabir
Hadpickig at Nai' Houe
Hadpickig Metod
The method of picking by hand 
from a mixture (when two or more 
substances are mixed) such as 
small stones and husk from wheat 
and rice is called handpicking. It is 
done on the basis of differences in 
size, colour and shape of the 
particles.
We to Ue
If the particles to be removed are 
present in small quantities and can 
easily be picked by hand, 
handpicking proves to be a 
convenient method.
Exaple at Luc
While eating vegetable pulao, Malli 
separates whole black peppers and 
places them aside on his plate. Valli 
playfully teases, "Wow! This is a 
handpicking method, nice one!"
Their first halt is at their _Nani's_ (maternal grandmother's) house in Haryana. It is surrounded by large fields. 
Malli and Valli are fascinated by the variety of grains piled up in the courtyard. Their _Mami_ (maternal aunt) and 
_Mama_ (maternal uncle), along with other community members, are busy separating small stones and husk 
from the grains with their hands.
Page 3


Metod of 
Separatio i 
Everyday Life
Just like winnowing makes the husk blow away while retaining the 
grains, similarly, sages let the virtues stay while discarding the vices. —
Kabir
Hadpickig at Nai' Houe
Hadpickig Metod
The method of picking by hand 
from a mixture (when two or more 
substances are mixed) such as 
small stones and husk from wheat 
and rice is called handpicking. It is 
done on the basis of differences in 
size, colour and shape of the 
particles.
We to Ue
If the particles to be removed are 
present in small quantities and can 
easily be picked by hand, 
handpicking proves to be a 
convenient method.
Exaple at Luc
While eating vegetable pulao, Malli 
separates whole black peppers and 
places them aside on his plate. Valli 
playfully teases, "Wow! This is a 
handpicking method, nice one!"
Their first halt is at their _Nani's_ (maternal grandmother's) house in Haryana. It is surrounded by large fields. 
Malli and Valli are fascinated by the variety of grains piled up in the courtyard. Their _Mami_ (maternal aunt) and 
_Mama_ (maternal uncle), along with other community members, are busy separating small stones and husk 
from the grains with their hands.
Treig i te Field
 Later in the day, their _Mama_ takes them to the fields where they 
observe bundles of harvested wheat stalks lying in the fields. Some 
stalks are spread in the sun for drying. Both of them pick up a stalk each 
and notice numerous grains attached to it. A group of farmers are 
beating the stalks on a large wooden log.
1
Obervig Treig
Valli asks _Mama_, "Why are they doing this?" Mama 
explains, "They are beating the stalks to separate the 
grains".
2
Defiitio of Treig
This process of separating grains from the stalks is known 
as threshing.
3
Farer' Joy
Farmers work hard, yet they enjoy their work. From time 
to time, they sing folk songs while working.
Page 4


Metod of 
Separatio i 
Everyday Life
Just like winnowing makes the husk blow away while retaining the 
grains, similarly, sages let the virtues stay while discarding the vices. —
Kabir
Hadpickig at Nai' Houe
Hadpickig Metod
The method of picking by hand 
from a mixture (when two or more 
substances are mixed) such as 
small stones and husk from wheat 
and rice is called handpicking. It is 
done on the basis of differences in 
size, colour and shape of the 
particles.
We to Ue
If the particles to be removed are 
present in small quantities and can 
easily be picked by hand, 
handpicking proves to be a 
convenient method.
Exaple at Luc
While eating vegetable pulao, Malli 
separates whole black peppers and 
places them aside on his plate. Valli 
playfully teases, "Wow! This is a 
handpicking method, nice one!"
Their first halt is at their _Nani's_ (maternal grandmother's) house in Haryana. It is surrounded by large fields. 
Malli and Valli are fascinated by the variety of grains piled up in the courtyard. Their _Mami_ (maternal aunt) and 
_Mama_ (maternal uncle), along with other community members, are busy separating small stones and husk 
from the grains with their hands.
Treig i te Field
 Later in the day, their _Mama_ takes them to the fields where they 
observe bundles of harvested wheat stalks lying in the fields. Some 
stalks are spread in the sun for drying. Both of them pick up a stalk each 
and notice numerous grains attached to it. A group of farmers are 
beating the stalks on a large wooden log.
1
Obervig Treig
Valli asks _Mama_, "Why are they doing this?" Mama 
explains, "They are beating the stalks to separate the 
grains".
2
Defiitio of Treig
This process of separating grains from the stalks is known 
as threshing.
3
Farer' Joy
Farmers work hard, yet they enjoy their work. From time 
to time, they sing folk songs while working.
Wiowig: Separatig 
Grai fro Huk
 The separated grains get mixed with piles of husk. Valli wonders how 
farmers separate these without handpicking. Their _Nana_ takes them 
to the fields to show the winnowing process at work.
1
Traditioal Metod
Traditionally, a _soop_ (bamboo tray) is used for 
separating heavier and lighter components of a mixture.
2
Obervig Wiowig
Malli and Valli observe a farmer standing on a raised 
platform. The farmer is moving the bamboo tray which 
contains threshed wheat grains in the direction of air or 
wind.
3
Defiitio of Wiowig
This method of separating heavier and lighter 
components of a mixture by wind or by blowing air is 
called winnowing.
Page 5


Metod of 
Separatio i 
Everyday Life
Just like winnowing makes the husk blow away while retaining the 
grains, similarly, sages let the virtues stay while discarding the vices. —
Kabir
Hadpickig at Nai' Houe
Hadpickig Metod
The method of picking by hand 
from a mixture (when two or more 
substances are mixed) such as 
small stones and husk from wheat 
and rice is called handpicking. It is 
done on the basis of differences in 
size, colour and shape of the 
particles.
We to Ue
If the particles to be removed are 
present in small quantities and can 
easily be picked by hand, 
handpicking proves to be a 
convenient method.
Exaple at Luc
While eating vegetable pulao, Malli 
separates whole black peppers and 
places them aside on his plate. Valli 
playfully teases, "Wow! This is a 
handpicking method, nice one!"
Their first halt is at their _Nani's_ (maternal grandmother's) house in Haryana. It is surrounded by large fields. 
Malli and Valli are fascinated by the variety of grains piled up in the courtyard. Their _Mami_ (maternal aunt) and 
_Mama_ (maternal uncle), along with other community members, are busy separating small stones and husk 
from the grains with their hands.
Treig i te Field
 Later in the day, their _Mama_ takes them to the fields where they 
observe bundles of harvested wheat stalks lying in the fields. Some 
stalks are spread in the sun for drying. Both of them pick up a stalk each 
and notice numerous grains attached to it. A group of farmers are 
beating the stalks on a large wooden log.
1
Obervig Treig
Valli asks _Mama_, "Why are they doing this?" Mama 
explains, "They are beating the stalks to separate the 
grains".
2
Defiitio of Treig
This process of separating grains from the stalks is known 
as threshing.
3
Farer' Joy
Farmers work hard, yet they enjoy their work. From time 
to time, they sing folk songs while working.
Wiowig: Separatig 
Grai fro Huk
 The separated grains get mixed with piles of husk. Valli wonders how 
farmers separate these without handpicking. Their _Nana_ takes them 
to the fields to show the winnowing process at work.
1
Traditioal Metod
Traditionally, a _soop_ (bamboo tray) is used for 
separating heavier and lighter components of a mixture.
2
Obervig Wiowig
Malli and Valli observe a farmer standing on a raised 
platform. The farmer is moving the bamboo tray which 
contains threshed wheat grains in the direction of air or 
wind.
3
Defiitio of Wiowig
This method of separating heavier and lighter 
components of a mixture by wind or by blowing air is 
called winnowing.
Moder Treig ad Wiowig
 Technological developments have resulted in developing of threshing machines called threshers. These machines 
are used for separating grains from the stalks and husk. They perform both the tasks of threshing and winnowing 
simultaneously.
Grai Separatio
Threshers separate grains from 
stalks efficiently.
Huk Reoval
Machines use air to remove lighter 
husk from grains.
Tie-Savig
Threshers perform both tasks 
simultaneously, saving time.