Sample Solution Paper 1 - Term- 2 Science, Class 6 Class 6 Notes | EduRev

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Class 6 : Sample Solution Paper 1 - Term- 2 Science, Class 6 Class 6 Notes | EduRev

 Page 1


  
 
CBSE  VI ¦SCIENCE 
Sample Paper 1 - Solution  
 
     
CBSE 
Class VI Science 
Term 2 
Sample Paper – 1 Solution 
 
SECTION-A 
1. (d) 
Papier mache is a mixture of clay, paper and rice husk. 
 
2. (b) 
All aquatic animals have webbed feet which helps them to swim and resist friction of 
water. 
 
3. (a)  
Condensation is the reverse of evaporation. 
 
4. (a)  
The second hand of a clock moves faster than the hour hand. The second hand 
completes one round in 60 seconds, whereas the hour hand completes one round in 12 
hours. 
 
5. (c) 
Sieving allows the fine sand particles to pass through the holes of the sieve while the 
bigger stones and pebbles remain on the sieve. 
 
6. (b)  
Tar on heating changes to liquid and on cooling forms a solid mass. 
7. (b)  
Falling of a tree branch is an irreversible change. 
8. (a) 
Air is dissolved in water and it escapes when water is heated and therefore tiny bubbles 
are seen on the surface of boiling water. 
9. (c)  
Photosynthesis does not help in recycling back carbon dioxide back into air. 
 
10. (a) 
In an electric cell, metal cap is the positive terminal of the electric cell and the metal 
disc is the negative terminal. 
 
Page 2


  
 
CBSE  VI ¦SCIENCE 
Sample Paper 1 - Solution  
 
     
CBSE 
Class VI Science 
Term 2 
Sample Paper – 1 Solution 
 
SECTION-A 
1. (d) 
Papier mache is a mixture of clay, paper and rice husk. 
 
2. (b) 
All aquatic animals have webbed feet which helps them to swim and resist friction of 
water. 
 
3. (a)  
Condensation is the reverse of evaporation. 
 
4. (a)  
The second hand of a clock moves faster than the hour hand. The second hand 
completes one round in 60 seconds, whereas the hour hand completes one round in 12 
hours. 
 
5. (c) 
Sieving allows the fine sand particles to pass through the holes of the sieve while the 
bigger stones and pebbles remain on the sieve. 
 
6. (b)  
Tar on heating changes to liquid and on cooling forms a solid mass. 
7. (b)  
Falling of a tree branch is an irreversible change. 
8. (a) 
Air is dissolved in water and it escapes when water is heated and therefore tiny bubbles 
are seen on the surface of boiling water. 
9. (c)  
Photosynthesis does not help in recycling back carbon dioxide back into air. 
 
10. (a) 
In an electric cell, metal cap is the positive terminal of the electric cell and the metal 
disc is the negative terminal. 
 
  
 
CBSE  VI ¦SCIENCE 
Sample Paper 1 - Solution  
 
     
11. (a)  
Leaves of plants with a fibrous root system show parallel venation. 
 
12. (a) 
The first diagram has a complete circuit, and hence here the bulb glows. 
 
13. (b) 
Two batteries provide a greater flow of electricity than one and hence the bulb will 
glow more brightly.  
 
14. (c) 
The ball will move towards point III since it is forces of attraction are more at point III 
due to the more number of magnets. 
 
15. (b) 
Bar magnets should be kept in pairs with their unlike poles on the same side. They must 
be separated by a piece of wood while two pieces of soft iron should be placed across 
their ends. 
SECTION-B 
 
16. Jute plants are harvested at the flowering stage. The stems are cut close to the ground 
and are then tied into bundles and soaked in water for a few days. This method of 
soaking is called retting. It softens the tissues and permits the fibres to be separated. 
 
17. Flattened fins give stability, and control the direction of movement during swimming. 
Slippery scales protect the fish and help in easy movement through water. 
 
18. Knitting is the process used to prepare the fabric for socks. In knitting, a single yarn is 
used to make a piece of fabric. Therefore, when a single yarn is pulled out continuously 
from a torn pair of socks, the fabric gets unravelled.  
 
19. The metal rim is made slightly smaller than the wooden wheel. On heating, the rim 
expands and fits onto the wheel. Cold water is then poured over the rim, which 
contracts and fits tightly onto the wheel. 
 
20. Carbon dioxide gas does not support combustion. When sprayed on a burning object, it 
cuts off the supply of oxygen and extinguishes the fire. 
 
21. Yes, the bulb will glow in the arrangement shown in the figure because the circuit is 
complete i.e. there is a continuity in the circuit without any break. 
 
  
Page 3


  
 
CBSE  VI ¦SCIENCE 
Sample Paper 1 - Solution  
 
     
CBSE 
Class VI Science 
Term 2 
Sample Paper – 1 Solution 
 
SECTION-A 
1. (d) 
Papier mache is a mixture of clay, paper and rice husk. 
 
2. (b) 
All aquatic animals have webbed feet which helps them to swim and resist friction of 
water. 
 
3. (a)  
Condensation is the reverse of evaporation. 
 
4. (a)  
The second hand of a clock moves faster than the hour hand. The second hand 
completes one round in 60 seconds, whereas the hour hand completes one round in 12 
hours. 
 
5. (c) 
Sieving allows the fine sand particles to pass through the holes of the sieve while the 
bigger stones and pebbles remain on the sieve. 
 
6. (b)  
Tar on heating changes to liquid and on cooling forms a solid mass. 
7. (b)  
Falling of a tree branch is an irreversible change. 
8. (a) 
Air is dissolved in water and it escapes when water is heated and therefore tiny bubbles 
are seen on the surface of boiling water. 
9. (c)  
Photosynthesis does not help in recycling back carbon dioxide back into air. 
 
10. (a) 
In an electric cell, metal cap is the positive terminal of the electric cell and the metal 
disc is the negative terminal. 
 
  
 
CBSE  VI ¦SCIENCE 
Sample Paper 1 - Solution  
 
     
11. (a)  
Leaves of plants with a fibrous root system show parallel venation. 
 
12. (a) 
The first diagram has a complete circuit, and hence here the bulb glows. 
 
13. (b) 
Two batteries provide a greater flow of electricity than one and hence the bulb will 
glow more brightly.  
 
14. (c) 
The ball will move towards point III since it is forces of attraction are more at point III 
due to the more number of magnets. 
 
15. (b) 
Bar magnets should be kept in pairs with their unlike poles on the same side. They must 
be separated by a piece of wood while two pieces of soft iron should be placed across 
their ends. 
SECTION-B 
 
16. Jute plants are harvested at the flowering stage. The stems are cut close to the ground 
and are then tied into bundles and soaked in water for a few days. This method of 
soaking is called retting. It softens the tissues and permits the fibres to be separated. 
 
17. Flattened fins give stability, and control the direction of movement during swimming. 
Slippery scales protect the fish and help in easy movement through water. 
 
18. Knitting is the process used to prepare the fabric for socks. In knitting, a single yarn is 
used to make a piece of fabric. Therefore, when a single yarn is pulled out continuously 
from a torn pair of socks, the fabric gets unravelled.  
 
19. The metal rim is made slightly smaller than the wooden wheel. On heating, the rim 
expands and fits onto the wheel. Cold water is then poured over the rim, which 
contracts and fits tightly onto the wheel. 
 
20. Carbon dioxide gas does not support combustion. When sprayed on a burning object, it 
cuts off the supply of oxygen and extinguishes the fire. 
 
21. Yes, the bulb will glow in the arrangement shown in the figure because the circuit is 
complete i.e. there is a continuity in the circuit without any break. 
 
  
  
 
CBSE  VI ¦SCIENCE 
Sample Paper 1 - Solution  
 
     
22. Tree view through a pinhole camera  
 
 
 
 
 
 
 
SECTION-C 
23.   
(a)  
i. We should not put wastes containing salt, oil and milk preparations in the pits, 
as the disease-causing small organisms start growing in the pit.  
ii. Mixing powdered egg shells or sea shells with the wastes help red worms in 
grinding their food well. 
(b) Redworms do not survive in very hot or very cold surroundings. They grow well in 
moist surroundings. 
 
24.  
(a) The problems faced by people due to drought are: 
i. In drought conditions, the soil does not have sufficient moisture to grow crops      
well. 
ii. The vegetation such as grass and fodder does not grow well and leads to 
shortage of fodder for domestic animals. 
iii. Many people living in the areas of drought may have to migrate to other places 
along with their domestic animals in search of food and fodder. 
(b) The basic idea behind rainwater harvesting is to catch water where it falls on the 
E arth’ s surface. 
 
25.  All living organisms respond to stimuli by moving towards or away from it. Examples  
i. The increased secretion of saliva on seeing our favourite food is the response to the 
flavour of the food. 
ii. A bright flash of light makes us close our eyes or narrow them.  
iii. The leaves of the ‘Touch-me-not' plant close on touching them. 
iv. The tip of the shoot moves towards light. 
 
Page 4


  
 
CBSE  VI ¦SCIENCE 
Sample Paper 1 - Solution  
 
     
CBSE 
Class VI Science 
Term 2 
Sample Paper – 1 Solution 
 
SECTION-A 
1. (d) 
Papier mache is a mixture of clay, paper and rice husk. 
 
2. (b) 
All aquatic animals have webbed feet which helps them to swim and resist friction of 
water. 
 
3. (a)  
Condensation is the reverse of evaporation. 
 
4. (a)  
The second hand of a clock moves faster than the hour hand. The second hand 
completes one round in 60 seconds, whereas the hour hand completes one round in 12 
hours. 
 
5. (c) 
Sieving allows the fine sand particles to pass through the holes of the sieve while the 
bigger stones and pebbles remain on the sieve. 
 
6. (b)  
Tar on heating changes to liquid and on cooling forms a solid mass. 
7. (b)  
Falling of a tree branch is an irreversible change. 
8. (a) 
Air is dissolved in water and it escapes when water is heated and therefore tiny bubbles 
are seen on the surface of boiling water. 
9. (c)  
Photosynthesis does not help in recycling back carbon dioxide back into air. 
 
10. (a) 
In an electric cell, metal cap is the positive terminal of the electric cell and the metal 
disc is the negative terminal. 
 
  
 
CBSE  VI ¦SCIENCE 
Sample Paper 1 - Solution  
 
     
11. (a)  
Leaves of plants with a fibrous root system show parallel venation. 
 
12. (a) 
The first diagram has a complete circuit, and hence here the bulb glows. 
 
13. (b) 
Two batteries provide a greater flow of electricity than one and hence the bulb will 
glow more brightly.  
 
14. (c) 
The ball will move towards point III since it is forces of attraction are more at point III 
due to the more number of magnets. 
 
15. (b) 
Bar magnets should be kept in pairs with their unlike poles on the same side. They must 
be separated by a piece of wood while two pieces of soft iron should be placed across 
their ends. 
SECTION-B 
 
16. Jute plants are harvested at the flowering stage. The stems are cut close to the ground 
and are then tied into bundles and soaked in water for a few days. This method of 
soaking is called retting. It softens the tissues and permits the fibres to be separated. 
 
17. Flattened fins give stability, and control the direction of movement during swimming. 
Slippery scales protect the fish and help in easy movement through water. 
 
18. Knitting is the process used to prepare the fabric for socks. In knitting, a single yarn is 
used to make a piece of fabric. Therefore, when a single yarn is pulled out continuously 
from a torn pair of socks, the fabric gets unravelled.  
 
19. The metal rim is made slightly smaller than the wooden wheel. On heating, the rim 
expands and fits onto the wheel. Cold water is then poured over the rim, which 
contracts and fits tightly onto the wheel. 
 
20. Carbon dioxide gas does not support combustion. When sprayed on a burning object, it 
cuts off the supply of oxygen and extinguishes the fire. 
 
21. Yes, the bulb will glow in the arrangement shown in the figure because the circuit is 
complete i.e. there is a continuity in the circuit without any break. 
 
  
  
 
CBSE  VI ¦SCIENCE 
Sample Paper 1 - Solution  
 
     
22. Tree view through a pinhole camera  
 
 
 
 
 
 
 
SECTION-C 
23.   
(a)  
i. We should not put wastes containing salt, oil and milk preparations in the pits, 
as the disease-causing small organisms start growing in the pit.  
ii. Mixing powdered egg shells or sea shells with the wastes help red worms in 
grinding their food well. 
(b) Redworms do not survive in very hot or very cold surroundings. They grow well in 
moist surroundings. 
 
24.  
(a) The problems faced by people due to drought are: 
i. In drought conditions, the soil does not have sufficient moisture to grow crops      
well. 
ii. The vegetation such as grass and fodder does not grow well and leads to 
shortage of fodder for domestic animals. 
iii. Many people living in the areas of drought may have to migrate to other places 
along with their domestic animals in search of food and fodder. 
(b) The basic idea behind rainwater harvesting is to catch water where it falls on the 
E arth’ s surface. 
 
25.  All living organisms respond to stimuli by moving towards or away from it. Examples  
i. The increased secretion of saliva on seeing our favourite food is the response to the 
flavour of the food. 
ii. A bright flash of light makes us close our eyes or narrow them.  
iii. The leaves of the ‘Touch-me-not' plant close on touching them. 
iv. The tip of the shoot moves towards light. 
 
  
 
CBSE  VI ¦SCIENCE 
Sample Paper 1 - Solution  
 
     
26. Mixtures are separated into their components for the following reasons: 
1. To remove undesirable components 
 For example, tea is made by boiling tea leaves in water and then adding milk and 
sugar. After tea is made, the used tea leaves are an undesirable component of the 
mixture 'tea' and are removed from it by using a tea strainer.  
2. To remove harmful components 
 For example, food grains like rice, wheat, pulses etc. usually contain small pieces of 
stones, some insects etc. These cannot be consumed and are hence removed from 
the food grains before use. 
3. To obtain a pure sample of a substance 
 For example, tap water contains some impurities and dissolved salts in it making it 
an impure mixture. This water is made free of impurities or dissolved salts by the 
process of distillation and as a result, we get pure water. 
4. To obtain a useful component 
 For example, buttermilk is a mixture from which the useful component 'butter' is 
separated. 
 
27.   
(a) Inflating a balloon is a reversible change. When air is blown into a balloon, its shape 
and size change and the balloon gets inflated. Now when the air filled in the balloon 
is allowed to escape, the balloon comes back to its original size and shape. Hence, 
inflating a balloon is a reversible change. 
Bursting of a balloon is an irreversible change. When a balloon filled with air is 
burst, the balloon cannot be changed back to its original shape and size. Since the 
change in the shape and size on bursting of a balloon cannot be reversed, it is an 
irreversible change. 
(b) Rolling of a roti is a reversible change. Roti is made by rolling a ball of dough into a 
circular shape. This rolled roti can be easily converted back to the ball of dough i.e. it 
is an action which can be reversed, hence it is a reversible change. 
Baking a roti is an irreversible change. Baked roti cannot be changed back into the 
original ball of dough i.e. this action cannot be reversed. Hence, it is an irreversible 
change. 
 
 
  
Page 5


  
 
CBSE  VI ¦SCIENCE 
Sample Paper 1 - Solution  
 
     
CBSE 
Class VI Science 
Term 2 
Sample Paper – 1 Solution 
 
SECTION-A 
1. (d) 
Papier mache is a mixture of clay, paper and rice husk. 
 
2. (b) 
All aquatic animals have webbed feet which helps them to swim and resist friction of 
water. 
 
3. (a)  
Condensation is the reverse of evaporation. 
 
4. (a)  
The second hand of a clock moves faster than the hour hand. The second hand 
completes one round in 60 seconds, whereas the hour hand completes one round in 12 
hours. 
 
5. (c) 
Sieving allows the fine sand particles to pass through the holes of the sieve while the 
bigger stones and pebbles remain on the sieve. 
 
6. (b)  
Tar on heating changes to liquid and on cooling forms a solid mass. 
7. (b)  
Falling of a tree branch is an irreversible change. 
8. (a) 
Air is dissolved in water and it escapes when water is heated and therefore tiny bubbles 
are seen on the surface of boiling water. 
9. (c)  
Photosynthesis does not help in recycling back carbon dioxide back into air. 
 
10. (a) 
In an electric cell, metal cap is the positive terminal of the electric cell and the metal 
disc is the negative terminal. 
 
  
 
CBSE  VI ¦SCIENCE 
Sample Paper 1 - Solution  
 
     
11. (a)  
Leaves of plants with a fibrous root system show parallel venation. 
 
12. (a) 
The first diagram has a complete circuit, and hence here the bulb glows. 
 
13. (b) 
Two batteries provide a greater flow of electricity than one and hence the bulb will 
glow more brightly.  
 
14. (c) 
The ball will move towards point III since it is forces of attraction are more at point III 
due to the more number of magnets. 
 
15. (b) 
Bar magnets should be kept in pairs with their unlike poles on the same side. They must 
be separated by a piece of wood while two pieces of soft iron should be placed across 
their ends. 
SECTION-B 
 
16. Jute plants are harvested at the flowering stage. The stems are cut close to the ground 
and are then tied into bundles and soaked in water for a few days. This method of 
soaking is called retting. It softens the tissues and permits the fibres to be separated. 
 
17. Flattened fins give stability, and control the direction of movement during swimming. 
Slippery scales protect the fish and help in easy movement through water. 
 
18. Knitting is the process used to prepare the fabric for socks. In knitting, a single yarn is 
used to make a piece of fabric. Therefore, when a single yarn is pulled out continuously 
from a torn pair of socks, the fabric gets unravelled.  
 
19. The metal rim is made slightly smaller than the wooden wheel. On heating, the rim 
expands and fits onto the wheel. Cold water is then poured over the rim, which 
contracts and fits tightly onto the wheel. 
 
20. Carbon dioxide gas does not support combustion. When sprayed on a burning object, it 
cuts off the supply of oxygen and extinguishes the fire. 
 
21. Yes, the bulb will glow in the arrangement shown in the figure because the circuit is 
complete i.e. there is a continuity in the circuit without any break. 
 
  
  
 
CBSE  VI ¦SCIENCE 
Sample Paper 1 - Solution  
 
     
22. Tree view through a pinhole camera  
 
 
 
 
 
 
 
SECTION-C 
23.   
(a)  
i. We should not put wastes containing salt, oil and milk preparations in the pits, 
as the disease-causing small organisms start growing in the pit.  
ii. Mixing powdered egg shells or sea shells with the wastes help red worms in 
grinding their food well. 
(b) Redworms do not survive in very hot or very cold surroundings. They grow well in 
moist surroundings. 
 
24.  
(a) The problems faced by people due to drought are: 
i. In drought conditions, the soil does not have sufficient moisture to grow crops      
well. 
ii. The vegetation such as grass and fodder does not grow well and leads to 
shortage of fodder for domestic animals. 
iii. Many people living in the areas of drought may have to migrate to other places 
along with their domestic animals in search of food and fodder. 
(b) The basic idea behind rainwater harvesting is to catch water where it falls on the 
E arth’ s surface. 
 
25.  All living organisms respond to stimuli by moving towards or away from it. Examples  
i. The increased secretion of saliva on seeing our favourite food is the response to the 
flavour of the food. 
ii. A bright flash of light makes us close our eyes or narrow them.  
iii. The leaves of the ‘Touch-me-not' plant close on touching them. 
iv. The tip of the shoot moves towards light. 
 
  
 
CBSE  VI ¦SCIENCE 
Sample Paper 1 - Solution  
 
     
26. Mixtures are separated into their components for the following reasons: 
1. To remove undesirable components 
 For example, tea is made by boiling tea leaves in water and then adding milk and 
sugar. After tea is made, the used tea leaves are an undesirable component of the 
mixture 'tea' and are removed from it by using a tea strainer.  
2. To remove harmful components 
 For example, food grains like rice, wheat, pulses etc. usually contain small pieces of 
stones, some insects etc. These cannot be consumed and are hence removed from 
the food grains before use. 
3. To obtain a pure sample of a substance 
 For example, tap water contains some impurities and dissolved salts in it making it 
an impure mixture. This water is made free of impurities or dissolved salts by the 
process of distillation and as a result, we get pure water. 
4. To obtain a useful component 
 For example, buttermilk is a mixture from which the useful component 'butter' is 
separated. 
 
27.   
(a) Inflating a balloon is a reversible change. When air is blown into a balloon, its shape 
and size change and the balloon gets inflated. Now when the air filled in the balloon 
is allowed to escape, the balloon comes back to its original size and shape. Hence, 
inflating a balloon is a reversible change. 
Bursting of a balloon is an irreversible change. When a balloon filled with air is 
burst, the balloon cannot be changed back to its original shape and size. Since the 
change in the shape and size on bursting of a balloon cannot be reversed, it is an 
irreversible change. 
(b) Rolling of a roti is a reversible change. Roti is made by rolling a ball of dough into a 
circular shape. This rolled roti can be easily converted back to the ball of dough i.e. it 
is an action which can be reversed, hence it is a reversible change. 
Baking a roti is an irreversible change. Baked roti cannot be changed back into the 
original ball of dough i.e. this action cannot be reversed. Hence, it is an irreversible 
change. 
 
 
  
  
 
CBSE  VI ¦SCIENCE 
Sample Paper 1 - Solution  
 
     
28.  
(a) Combustion is the process of burning of a substance. 
(b) Activity: Take a candle and fix it on a table. The candle is lighted. The candle will 
continue to burn due to continuously available fresh air providing the required 
oxygen for combustion. 
Now cover the burning candle by putting an inverted gas jar over it. After a short 
time, the candle stops burning and gets extinguished. When the burning candle is 
covered with a gas jar, the candle takes away the oxygen necessary for burning from 
the air enclosed in the gas jar.  
After some time, when all the oxygen in the air inside the gas jar is used up, the 
burning candle gets extinguished. This proves that air is necessary for combustion 
of substances. 
 
29.   
(a)  
i. Bar Magnet 
ii. Horse-shoe magnet 
(b) In the olden days, travellers used to find directions by suspending natural magnets 
with a thread. When suspended freely, these magnets point in north-south direction. 
 
30.  Take two drawing pins, a safety pin, two wires and a small sheet of thermocol or a 
wooden board. Insert a drawing pin into the ring at one end of the safety pin and fix it 
on the thermocol sheet. Make sure that the safety pin can be rotated freely. Now, fix the 
other drawing pin on the thermocol sheet in a way that the free end of the safety pin 
can touch it. 
The safety pin fixed acts as a switch in this arrangement. 
 
 
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