Page 1
4 Chapter
Reshma lives in a coastal town of
Kerala and is very fond of writing
short stories. Her grandmother
loves listening to her stories, so
Reshma was writing a new story
to share with her grandmother
on her 60th birthday.
Exploring Magnets
The story was based on a ship
carrying spices from Kerala for
trade in the olden days. Reshma
was aware that in those days,
the sailors used stars to find
directions at night. But in her
story, a situation arose wherein
the sailors got caught in a storm
with an overcast sky and stars
were not visible. Reshma could not take her story forward
as she could not think of a way for sailors to find directions.
She searched for information on the internet and her
school library. She learnt that the travellers used a device,
known as a magnetic compass, for finding
directions.
Reshma had seen pencil boxes and
purses which had magnets to keep them
closed. A writing board in her school
also had a duster with a magnet. But
she had never looked at those carefully.
She now became curious to learn more
about magnets and magnetic compasses.
Chapter 4.indd 61 10-07-2024 14:45:56
Page 2
4 Chapter
Reshma lives in a coastal town of
Kerala and is very fond of writing
short stories. Her grandmother
loves listening to her stories, so
Reshma was writing a new story
to share with her grandmother
on her 60th birthday.
Exploring Magnets
The story was based on a ship
carrying spices from Kerala for
trade in the olden days. Reshma
was aware that in those days,
the sailors used stars to find
directions at night. But in her
story, a situation arose wherein
the sailors got caught in a storm
with an overcast sky and stars
were not visible. Reshma could not take her story forward
as she could not think of a way for sailors to find directions.
She searched for information on the internet and her
school library. She learnt that the travellers used a device,
known as a magnetic compass, for finding
directions.
Reshma had seen pencil boxes and
purses which had magnets to keep them
closed. A writing board in her school
also had a duster with a magnet. But
she had never looked at those carefully.
She now became curious to learn more
about magnets and magnetic compasses.
Chapter 4.indd 61 10-07-2024 14:45:56
The magnets used by sailors in the olden days were based
on naturally occurring magnets, known as lodestones which
were discovered in ancient times. Later on, people found
out that magnets could also be made from pieces of iron.
Nowadays, we have magnets made of different materials.
The magnets that you find in your school laboratory and
those used in pencil boxes, stickers, toys are all artificial
magnets (Fig. 4.1). The magnets can be of various shapes,
some of which are shown in Fig. 4.2.
Fig. 4.1: Some common items that have magnets attached to them
4.1 Magnetic and Non-magnetic Materials
Activity 4.1: Let us explore
? Collect a few objects made of different materials and
also a magnet.
? Predict which of the objects will stick to the magnet.
Write your prediction in Table 4.1.
? Now hold a magnet in your hand and bring it near
the objects one by one (Fig. 4.3). Observe which of the
objects stick to the magnet.
Do magnets
stick to objects
made of certain
materials only?
?
Bar
magnet
U-shaped
magnet
Ring
magnet
Fig. 4.2: Magnets of different shapes
Curiosity | Textbook of Science | Grade 6
62
Chapter 4.indd 62 10-07-2024 14:45:58
Page 3
4 Chapter
Reshma lives in a coastal town of
Kerala and is very fond of writing
short stories. Her grandmother
loves listening to her stories, so
Reshma was writing a new story
to share with her grandmother
on her 60th birthday.
Exploring Magnets
The story was based on a ship
carrying spices from Kerala for
trade in the olden days. Reshma
was aware that in those days,
the sailors used stars to find
directions at night. But in her
story, a situation arose wherein
the sailors got caught in a storm
with an overcast sky and stars
were not visible. Reshma could not take her story forward
as she could not think of a way for sailors to find directions.
She searched for information on the internet and her
school library. She learnt that the travellers used a device,
known as a magnetic compass, for finding
directions.
Reshma had seen pencil boxes and
purses which had magnets to keep them
closed. A writing board in her school
also had a duster with a magnet. But
she had never looked at those carefully.
She now became curious to learn more
about magnets and magnetic compasses.
Chapter 4.indd 61 10-07-2024 14:45:56
The magnets used by sailors in the olden days were based
on naturally occurring magnets, known as lodestones which
were discovered in ancient times. Later on, people found
out that magnets could also be made from pieces of iron.
Nowadays, we have magnets made of different materials.
The magnets that you find in your school laboratory and
those used in pencil boxes, stickers, toys are all artificial
magnets (Fig. 4.1). The magnets can be of various shapes,
some of which are shown in Fig. 4.2.
Fig. 4.1: Some common items that have magnets attached to them
4.1 Magnetic and Non-magnetic Materials
Activity 4.1: Let us explore
? Collect a few objects made of different materials and
also a magnet.
? Predict which of the objects will stick to the magnet.
Write your prediction in Table 4.1.
? Now hold a magnet in your hand and bring it near
the objects one by one (Fig. 4.3). Observe which of the
objects stick to the magnet.
Do magnets
stick to objects
made of certain
materials only?
?
Bar
magnet
U-shaped
magnet
Ring
magnet
Fig. 4.2: Magnets of different shapes
Curiosity | Textbook of Science | Grade 6
62
Chapter 4.indd 62 10-07-2024 14:45:58
Name of the
object
Material which the
object is made of
(plastic/wood/glass/
iron/any other)
Attracted by the
magnet (Yes/No)
Prediction Observation
Pencil Wood
Eraser Rubber
Fig. 4.3: Identifying the materials attracted by a magnet
? Record your observations in Table 4.1.
Table 4.1: Identifying the materials attracted by a magnet
4.1 Magnetic and Non-magnetic Materials
Activity 4.1: Let us explore
? Collect a few objects made of different materials and
also a magnet.
? Predict which of the objects will stick to the magnet.
Write your prediction in Table 4.1.
? Now hold a magnet in your hand and bring it near
the objects one by one (Fig. 4.3). Observe which of the
objects stick to the magnet.
Exploring Magnets
63
Chapter 4.indd 63 10-07-2024 14:46:14
Page 4
4 Chapter
Reshma lives in a coastal town of
Kerala and is very fond of writing
short stories. Her grandmother
loves listening to her stories, so
Reshma was writing a new story
to share with her grandmother
on her 60th birthday.
Exploring Magnets
The story was based on a ship
carrying spices from Kerala for
trade in the olden days. Reshma
was aware that in those days,
the sailors used stars to find
directions at night. But in her
story, a situation arose wherein
the sailors got caught in a storm
with an overcast sky and stars
were not visible. Reshma could not take her story forward
as she could not think of a way for sailors to find directions.
She searched for information on the internet and her
school library. She learnt that the travellers used a device,
known as a magnetic compass, for finding
directions.
Reshma had seen pencil boxes and
purses which had magnets to keep them
closed. A writing board in her school
also had a duster with a magnet. But
she had never looked at those carefully.
She now became curious to learn more
about magnets and magnetic compasses.
Chapter 4.indd 61 10-07-2024 14:45:56
The magnets used by sailors in the olden days were based
on naturally occurring magnets, known as lodestones which
were discovered in ancient times. Later on, people found
out that magnets could also be made from pieces of iron.
Nowadays, we have magnets made of different materials.
The magnets that you find in your school laboratory and
those used in pencil boxes, stickers, toys are all artificial
magnets (Fig. 4.1). The magnets can be of various shapes,
some of which are shown in Fig. 4.2.
Fig. 4.1: Some common items that have magnets attached to them
4.1 Magnetic and Non-magnetic Materials
Activity 4.1: Let us explore
? Collect a few objects made of different materials and
also a magnet.
? Predict which of the objects will stick to the magnet.
Write your prediction in Table 4.1.
? Now hold a magnet in your hand and bring it near
the objects one by one (Fig. 4.3). Observe which of the
objects stick to the magnet.
Do magnets
stick to objects
made of certain
materials only?
?
Bar
magnet
U-shaped
magnet
Ring
magnet
Fig. 4.2: Magnets of different shapes
Curiosity | Textbook of Science | Grade 6
62
Chapter 4.indd 62 10-07-2024 14:45:58
Name of the
object
Material which the
object is made of
(plastic/wood/glass/
iron/any other)
Attracted by the
magnet (Yes/No)
Prediction Observation
Pencil Wood
Eraser Rubber
Fig. 4.3: Identifying the materials attracted by a magnet
? Record your observations in Table 4.1.
Table 4.1: Identifying the materials attracted by a magnet
4.1 Magnetic and Non-magnetic Materials
Activity 4.1: Let us explore
? Collect a few objects made of different materials and
also a magnet.
? Predict which of the objects will stick to the magnet.
Write your prediction in Table 4.1.
? Now hold a magnet in your hand and bring it near
the objects one by one (Fig. 4.3). Observe which of the
objects stick to the magnet.
Exploring Magnets
63
Chapter 4.indd 63 10-07-2024 14:46:14
Was your prediction correct for all objects? Which
materials stuck to the magnet? What conclusion can you
draw?
Through this activity, we found out that some of the
objects were attracted to the magnet and stuck to it, while
others were not. The materials which are attracted towards
a magnet are called magnetic materials.
The metal iron is a magnetic material.
Nickel and cobalt are other metals that are
also magnetic. Some of their combinations
with other metals are also attracted
towards magnets. The materials which are
not attracted towards a magnet are called
non-magnetic materials.
Which materials listed in Table 4.1 were
found to be non-magnetic?
4.2 Poles of Magnet
Activity 4.2: Let us investigate
? Spread some iron filings (very small pieces of iron) on a
sheet of paper .
? Place a bar magnet over them. Tap the paper and
observe carefully what happens to the iron filings.
Do you observe anything special about the way they stick
to the magnet? Do the iron filings stick all over the magnet
uniformly? Or do the iron filings stick more at some places?
We find that maximum iron filings stick near the ends of
the bar magnet, as shown in Fig. 4.4, while a very few iron
filings stick at the remaining part of the magnet.
These ends of the magnet are called the
two poles of the magnet—the North pole and
the South pole. Most of the iron filings stick
to the poles of a magnet of any shape.
It is not possible to obtain a magnet with
a single pole. If a magnet is broken into
smaller pieces, North and South poles always
exist in pairs even in the smallest piece of the magnet.
A single North pole or a South pole cannot exist.
4.3 Finding Directions
Activity 4.3: Let us experiment
? Suspend a bar magnet with a thread tied to the middle of
the magnet as shown in Fig. 4.5. You may need to adjust
the position of the string till the magnet is balanced
horizontally.
? Now rotate the magnet gently in the
horizontal direction and let it come to rest.
? Mark the position corresponding to the
ends of the magnet on the ground (or on
a piece of paper stuck to the ground). Join
these two points on the ground with a
line. This line indicates the direction along
which the magnet comes to rest.
? Now again rotate the magnet by giving a
gentle push at its one end and wait till it
comes to rest. Does the magnet rest along
the same line?
Fig. 4.4: Iron filings sticking
to a bar magnet
Do all parts of a
magnet attract
magnetic
materials
equally? ?
If we repeat this
activity with
magnets of other
shapes, do we get
the same result?
Curiosity | Textbook of Science | Grade 6
64
Chapter 4.indd 64 10-07-2024 14:46:16
Page 5
4 Chapter
Reshma lives in a coastal town of
Kerala and is very fond of writing
short stories. Her grandmother
loves listening to her stories, so
Reshma was writing a new story
to share with her grandmother
on her 60th birthday.
Exploring Magnets
The story was based on a ship
carrying spices from Kerala for
trade in the olden days. Reshma
was aware that in those days,
the sailors used stars to find
directions at night. But in her
story, a situation arose wherein
the sailors got caught in a storm
with an overcast sky and stars
were not visible. Reshma could not take her story forward
as she could not think of a way for sailors to find directions.
She searched for information on the internet and her
school library. She learnt that the travellers used a device,
known as a magnetic compass, for finding
directions.
Reshma had seen pencil boxes and
purses which had magnets to keep them
closed. A writing board in her school
also had a duster with a magnet. But
she had never looked at those carefully.
She now became curious to learn more
about magnets and magnetic compasses.
Chapter 4.indd 61 10-07-2024 14:45:56
The magnets used by sailors in the olden days were based
on naturally occurring magnets, known as lodestones which
were discovered in ancient times. Later on, people found
out that magnets could also be made from pieces of iron.
Nowadays, we have magnets made of different materials.
The magnets that you find in your school laboratory and
those used in pencil boxes, stickers, toys are all artificial
magnets (Fig. 4.1). The magnets can be of various shapes,
some of which are shown in Fig. 4.2.
Fig. 4.1: Some common items that have magnets attached to them
4.1 Magnetic and Non-magnetic Materials
Activity 4.1: Let us explore
? Collect a few objects made of different materials and
also a magnet.
? Predict which of the objects will stick to the magnet.
Write your prediction in Table 4.1.
? Now hold a magnet in your hand and bring it near
the objects one by one (Fig. 4.3). Observe which of the
objects stick to the magnet.
Do magnets
stick to objects
made of certain
materials only?
?
Bar
magnet
U-shaped
magnet
Ring
magnet
Fig. 4.2: Magnets of different shapes
Curiosity | Textbook of Science | Grade 6
62
Chapter 4.indd 62 10-07-2024 14:45:58
Name of the
object
Material which the
object is made of
(plastic/wood/glass/
iron/any other)
Attracted by the
magnet (Yes/No)
Prediction Observation
Pencil Wood
Eraser Rubber
Fig. 4.3: Identifying the materials attracted by a magnet
? Record your observations in Table 4.1.
Table 4.1: Identifying the materials attracted by a magnet
4.1 Magnetic and Non-magnetic Materials
Activity 4.1: Let us explore
? Collect a few objects made of different materials and
also a magnet.
? Predict which of the objects will stick to the magnet.
Write your prediction in Table 4.1.
? Now hold a magnet in your hand and bring it near
the objects one by one (Fig. 4.3). Observe which of the
objects stick to the magnet.
Exploring Magnets
63
Chapter 4.indd 63 10-07-2024 14:46:14
Was your prediction correct for all objects? Which
materials stuck to the magnet? What conclusion can you
draw?
Through this activity, we found out that some of the
objects were attracted to the magnet and stuck to it, while
others were not. The materials which are attracted towards
a magnet are called magnetic materials.
The metal iron is a magnetic material.
Nickel and cobalt are other metals that are
also magnetic. Some of their combinations
with other metals are also attracted
towards magnets. The materials which are
not attracted towards a magnet are called
non-magnetic materials.
Which materials listed in Table 4.1 were
found to be non-magnetic?
4.2 Poles of Magnet
Activity 4.2: Let us investigate
? Spread some iron filings (very small pieces of iron) on a
sheet of paper .
? Place a bar magnet over them. Tap the paper and
observe carefully what happens to the iron filings.
Do you observe anything special about the way they stick
to the magnet? Do the iron filings stick all over the magnet
uniformly? Or do the iron filings stick more at some places?
We find that maximum iron filings stick near the ends of
the bar magnet, as shown in Fig. 4.4, while a very few iron
filings stick at the remaining part of the magnet.
These ends of the magnet are called the
two poles of the magnet—the North pole and
the South pole. Most of the iron filings stick
to the poles of a magnet of any shape.
It is not possible to obtain a magnet with
a single pole. If a magnet is broken into
smaller pieces, North and South poles always
exist in pairs even in the smallest piece of the magnet.
A single North pole or a South pole cannot exist.
4.3 Finding Directions
Activity 4.3: Let us experiment
? Suspend a bar magnet with a thread tied to the middle of
the magnet as shown in Fig. 4.5. You may need to adjust
the position of the string till the magnet is balanced
horizontally.
? Now rotate the magnet gently in the
horizontal direction and let it come to rest.
? Mark the position corresponding to the
ends of the magnet on the ground (or on
a piece of paper stuck to the ground). Join
these two points on the ground with a
line. This line indicates the direction along
which the magnet comes to rest.
? Now again rotate the magnet by giving a
gentle push at its one end and wait till it
comes to rest. Does the magnet rest along
the same line?
Fig. 4.4: Iron filings sticking
to a bar magnet
Do all parts of a
magnet attract
magnetic
materials
equally? ?
If we repeat this
activity with
magnets of other
shapes, do we get
the same result?
Curiosity | Textbook of Science | Grade 6
64
Chapter 4.indd 64 10-07-2024 14:46:16
If we have noticed the direction
where the Sun rises or sets, we
have an approximate idea of
where East or West is. Hence, we
can locate the direction along
which the magnet rests.
Was your prediction correct for all objects? Which
materials stuck to the magnet? What conclusion can you
draw?
Through this activity, we found out that some of the
objects were attracted to the magnet and stuck to it, while
others were not. The materials which are attracted towards
a magnet are called magnetic materials.
The metal iron is a magnetic material.
Nickel and cobalt are other metals that are
also magnetic. Some of their combinations
with other metals are also attracted
towards magnets. The materials which are
not attracted towards a magnet are called
non-magnetic materials.
Which materials listed in Table 4.1 were
found to be non-magnetic?
4.2 Poles of Magnet
Activity 4.2: Let us investigate
? Spread some iron filings (very small pieces of iron) on a
sheet of paper .
? Place a bar magnet over them. Tap the paper and
observe carefully what happens to the iron filings.
Do you observe anything special about the way they stick
to the magnet? Do the iron filings stick all over the magnet
uniformly? Or do the iron filings stick more at some places?
We find that maximum iron filings stick near the ends of
the bar magnet, as shown in Fig. 4.4, while a very few iron
filings stick at the remaining part of the magnet.
These ends of the magnet are called the
two poles of the magnet—the North pole and
the South pole. Most of the iron filings stick
to the poles of a magnet of any shape.
It is not possible to obtain a magnet with
a single pole. If a magnet is broken into
smaller pieces, North and South poles always
exist in pairs even in the smallest piece of the magnet.
A single North pole or a South pole cannot exist.
4.3 Finding Directions
Activity 4.3: Let us experiment
? Suspend a bar magnet with a thread tied to the middle of
the magnet as shown in Fig. 4.5. You may need to adjust
the position of the string till the magnet is balanced
horizontally.
? Now rotate the magnet gently in the
horizontal direction and let it come to rest.
? Mark the position corresponding to the
ends of the magnet on the ground (or on
a piece of paper stuck to the ground). Join
these two points on the ground with a
line. This line indicates the direction along
which the magnet comes to rest.
? Now again rotate the magnet by giving a
gentle push at its one end and wait till it
comes to rest. Does the magnet rest along
the same line?
Fig. 4.5: A freely suspended
bar magnet
Can we find
a magnet
with a
single pole?
?
What direction does
this line indicate
along which the
magnet rests? How
can we find it out?
Exploring Magnets
65
Chapter 4.indd 65 10-07-2024 14:46:16
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