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

Science Class 6

Created by: Praveen Kumar

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

 Page 1


  
 
CBSE  VI ¦SCIENCE 
Sample Paper - 2  Solution  
 
     
CBSE 
Class VI Science 
Term 2 
Sample Paper – 2 Solution 
 
SECTION A 
1. (d) 
The botanical name of touch-me-not plant is Mimosa. 
 
2.  (b) 
Giraffe reproduces by giving birth to young ones. 
 
3.  (d) 
Teeth are not present in the alimentary canal of red worms. 
 
4.  (d) 
River is not a form of precipitation as the water does not reach the Earth by this water 
body. All the others are ways by which water reaches the Earth’s surface. 
 
5.  (c) 
Churning is the process used to separate butter from buttermilk. 
 
6.  (b) 
The liquid obtained after filtration is called the filtrate. 
 
7.  (a) 
A metal surface which is freshly rubbed and cleaned using a sand paper is lustrous. This 
is because all the dust, impurities and substances formed on the surface are removed, 
and the shiny surface of the metal appears. 
 
8.  (b) 
Photosynthesis takes place only during the day. 
 
9.  (d) 
 The jute fibre is obtained from the stem and ribbon (outer skin) of the jute plant. 
 
10.  (b) 
Torch and Mobile Phone are battery powered electric appliances. 
 
11.  (b) 
When the bulb is switched on, the key gets closed, current flows and the bulb glows. 
Page 2


  
 
CBSE  VI ¦SCIENCE 
Sample Paper - 2  Solution  
 
     
CBSE 
Class VI Science 
Term 2 
Sample Paper – 2 Solution 
 
SECTION A 
1. (d) 
The botanical name of touch-me-not plant is Mimosa. 
 
2.  (b) 
Giraffe reproduces by giving birth to young ones. 
 
3.  (d) 
Teeth are not present in the alimentary canal of red worms. 
 
4.  (d) 
River is not a form of precipitation as the water does not reach the Earth by this water 
body. All the others are ways by which water reaches the Earth’s surface. 
 
5.  (c) 
Churning is the process used to separate butter from buttermilk. 
 
6.  (b) 
The liquid obtained after filtration is called the filtrate. 
 
7.  (a) 
A metal surface which is freshly rubbed and cleaned using a sand paper is lustrous. This 
is because all the dust, impurities and substances formed on the surface are removed, 
and the shiny surface of the metal appears. 
 
8.  (b) 
Photosynthesis takes place only during the day. 
 
9.  (d) 
 The jute fibre is obtained from the stem and ribbon (outer skin) of the jute plant. 
 
10.  (b) 
Torch and Mobile Phone are battery powered electric appliances. 
 
11.  (b) 
When the bulb is switched on, the key gets closed, current flows and the bulb glows. 
  
 
CBSE  VI ¦SCIENCE 
Sample Paper - 2  Solution  
 
     
12.  (a) 
In an electric circuit, the direction of current is taken to be from the positive to the 
negative terminal of the electric cell as shown in Fig (i) 
 
13.  (d) 
Earth to Moon 
 
14.  (d) 
As the two magnets do not touch each other, it means that the lower portion of the 
dropped material should be of the same polarity as the top one. 
 
15.  (b) 
Magnet II has maximum strength as it attracts maximum number of steel chips. 
 
SECTION B 
                  
16.   
i. The streamlined body shape (boat shape) allows the fish to move easily in water. 
ii. This is because fishes have gills which help them to use the oxygen dissolved in 
water. Gills are unable to absorb atmospheric oxygen, due to which the fish will die 
when removed out of water. 
 
17.  Plastic bags thrown away carelessly on roads and other places get into drains and the 
sewer system. As a result, drains get choked and sewage water spills on the roads. 
During heavy rains, it might even create a flood like situation. 
18. If the saturated solution of a substance at a particular temperature is heated to a higher 
temperature, then the solubility of the substance increases and more of substance can 
be dissolved in it. 
If the saturated solution of a substance at a particular temperature is cooled to a lower 
temperature, then the solubility of the substance decreases and some of the dissolved 
substance will precipitate out in the form of solid crystals. 
 
19.   
Transparent Materials Opaque Materials 
(1) Materials through which we are able 
to see clearly are called transparent 
materials 
(1) Materials through which we are 
not able to see are called opaque 
materials. 
(2) Example: Glass, water (2) Example: Wood, book 
 
 
  
Page 3


  
 
CBSE  VI ¦SCIENCE 
Sample Paper - 2  Solution  
 
     
CBSE 
Class VI Science 
Term 2 
Sample Paper – 2 Solution 
 
SECTION A 
1. (d) 
The botanical name of touch-me-not plant is Mimosa. 
 
2.  (b) 
Giraffe reproduces by giving birth to young ones. 
 
3.  (d) 
Teeth are not present in the alimentary canal of red worms. 
 
4.  (d) 
River is not a form of precipitation as the water does not reach the Earth by this water 
body. All the others are ways by which water reaches the Earth’s surface. 
 
5.  (c) 
Churning is the process used to separate butter from buttermilk. 
 
6.  (b) 
The liquid obtained after filtration is called the filtrate. 
 
7.  (a) 
A metal surface which is freshly rubbed and cleaned using a sand paper is lustrous. This 
is because all the dust, impurities and substances formed on the surface are removed, 
and the shiny surface of the metal appears. 
 
8.  (b) 
Photosynthesis takes place only during the day. 
 
9.  (d) 
 The jute fibre is obtained from the stem and ribbon (outer skin) of the jute plant. 
 
10.  (b) 
Torch and Mobile Phone are battery powered electric appliances. 
 
11.  (b) 
When the bulb is switched on, the key gets closed, current flows and the bulb glows. 
  
 
CBSE  VI ¦SCIENCE 
Sample Paper - 2  Solution  
 
     
12.  (a) 
In an electric circuit, the direction of current is taken to be from the positive to the 
negative terminal of the electric cell as shown in Fig (i) 
 
13.  (d) 
Earth to Moon 
 
14.  (d) 
As the two magnets do not touch each other, it means that the lower portion of the 
dropped material should be of the same polarity as the top one. 
 
15.  (b) 
Magnet II has maximum strength as it attracts maximum number of steel chips. 
 
SECTION B 
                  
16.   
i. The streamlined body shape (boat shape) allows the fish to move easily in water. 
ii. This is because fishes have gills which help them to use the oxygen dissolved in 
water. Gills are unable to absorb atmospheric oxygen, due to which the fish will die 
when removed out of water. 
 
17.  Plastic bags thrown away carelessly on roads and other places get into drains and the 
sewer system. As a result, drains get choked and sewage water spills on the roads. 
During heavy rains, it might even create a flood like situation. 
18. If the saturated solution of a substance at a particular temperature is heated to a higher 
temperature, then the solubility of the substance increases and more of substance can 
be dissolved in it. 
If the saturated solution of a substance at a particular temperature is cooled to a lower 
temperature, then the solubility of the substance decreases and some of the dissolved 
substance will precipitate out in the form of solid crystals. 
 
19.   
Transparent Materials Opaque Materials 
(1) Materials through which we are able 
to see clearly are called transparent 
materials 
(1) Materials through which we are 
not able to see are called opaque 
materials. 
(2) Example: Glass, water (2) Example: Wood, book 
 
 
  
  
 
CBSE  VI ¦SCIENCE 
Sample Paper - 2  Solution  
 
     
20. Test to detect the presence of starch in food: 
(i) Take a small quantity of food to be tested. 
(ii) Add 2–3 drops of iodine solution to the food item with the help of a dropper.  
(iii) Observe for colour change, if any. The presence of a blue–black colour indicates 
the presence of starch in the food item. 
 
21.   
i. Switch 'Off' or open switch 
ii. Switch 'On' or closed switch 
 
22.   
Length of pencil  = 2 x length of compass 
= 2 x 7.5 cm= 15 cm 
Now, length of eraser = length of pencil /5 
   = 15 cm / 5 
   = 3 cm 
SECTION C 
 
23.   
(a) Garbage which does not rot when buried in the soil - plastic toys, glass jar, 
aluminium wrappers. 
    Garbage which rots when buried in the soil - Dried leaves, leftover food, egg shells. 
(b) Some materials of garbage rot and get converted into compost which acts as manure 
for plants. This compost when mixed with soil provides nutrients to the plants. 
 
24.   
(a) Ways of minimizing generation of plastic waste: 
i. We should make minimum use of plastic bags.  
ii. We should carry a cloth or a jute bag when we go out for shopping. 
iii. We should not use plastic bags to store eatables. 
iv. We should not put garbage in plastic bags and throw it away. 
(b)  It is better to use compost as manure than chemical fertilizers because: 
i. Making compost is cheap whereas making of chemical fertilizers is very 
expensive. 
ii. Compost is natural manure which does not harm the soil but chemical fertilizers 
are man-made chemicals which harm the soil in long run. 
 
  
Page 4


  
 
CBSE  VI ¦SCIENCE 
Sample Paper - 2  Solution  
 
     
CBSE 
Class VI Science 
Term 2 
Sample Paper – 2 Solution 
 
SECTION A 
1. (d) 
The botanical name of touch-me-not plant is Mimosa. 
 
2.  (b) 
Giraffe reproduces by giving birth to young ones. 
 
3.  (d) 
Teeth are not present in the alimentary canal of red worms. 
 
4.  (d) 
River is not a form of precipitation as the water does not reach the Earth by this water 
body. All the others are ways by which water reaches the Earth’s surface. 
 
5.  (c) 
Churning is the process used to separate butter from buttermilk. 
 
6.  (b) 
The liquid obtained after filtration is called the filtrate. 
 
7.  (a) 
A metal surface which is freshly rubbed and cleaned using a sand paper is lustrous. This 
is because all the dust, impurities and substances formed on the surface are removed, 
and the shiny surface of the metal appears. 
 
8.  (b) 
Photosynthesis takes place only during the day. 
 
9.  (d) 
 The jute fibre is obtained from the stem and ribbon (outer skin) of the jute plant. 
 
10.  (b) 
Torch and Mobile Phone are battery powered electric appliances. 
 
11.  (b) 
When the bulb is switched on, the key gets closed, current flows and the bulb glows. 
  
 
CBSE  VI ¦SCIENCE 
Sample Paper - 2  Solution  
 
     
12.  (a) 
In an electric circuit, the direction of current is taken to be from the positive to the 
negative terminal of the electric cell as shown in Fig (i) 
 
13.  (d) 
Earth to Moon 
 
14.  (d) 
As the two magnets do not touch each other, it means that the lower portion of the 
dropped material should be of the same polarity as the top one. 
 
15.  (b) 
Magnet II has maximum strength as it attracts maximum number of steel chips. 
 
SECTION B 
                  
16.   
i. The streamlined body shape (boat shape) allows the fish to move easily in water. 
ii. This is because fishes have gills which help them to use the oxygen dissolved in 
water. Gills are unable to absorb atmospheric oxygen, due to which the fish will die 
when removed out of water. 
 
17.  Plastic bags thrown away carelessly on roads and other places get into drains and the 
sewer system. As a result, drains get choked and sewage water spills on the roads. 
During heavy rains, it might even create a flood like situation. 
18. If the saturated solution of a substance at a particular temperature is heated to a higher 
temperature, then the solubility of the substance increases and more of substance can 
be dissolved in it. 
If the saturated solution of a substance at a particular temperature is cooled to a lower 
temperature, then the solubility of the substance decreases and some of the dissolved 
substance will precipitate out in the form of solid crystals. 
 
19.   
Transparent Materials Opaque Materials 
(1) Materials through which we are able 
to see clearly are called transparent 
materials 
(1) Materials through which we are 
not able to see are called opaque 
materials. 
(2) Example: Glass, water (2) Example: Wood, book 
 
 
  
  
 
CBSE  VI ¦SCIENCE 
Sample Paper - 2  Solution  
 
     
20. Test to detect the presence of starch in food: 
(i) Take a small quantity of food to be tested. 
(ii) Add 2–3 drops of iodine solution to the food item with the help of a dropper.  
(iii) Observe for colour change, if any. The presence of a blue–black colour indicates 
the presence of starch in the food item. 
 
21.   
i. Switch 'Off' or open switch 
ii. Switch 'On' or closed switch 
 
22.   
Length of pencil  = 2 x length of compass 
= 2 x 7.5 cm= 15 cm 
Now, length of eraser = length of pencil /5 
   = 15 cm / 5 
   = 3 cm 
SECTION C 
 
23.   
(a) Garbage which does not rot when buried in the soil - plastic toys, glass jar, 
aluminium wrappers. 
    Garbage which rots when buried in the soil - Dried leaves, leftover food, egg shells. 
(b) Some materials of garbage rot and get converted into compost which acts as manure 
for plants. This compost when mixed with soil provides nutrients to the plants. 
 
24.   
(a) Ways of minimizing generation of plastic waste: 
i. We should make minimum use of plastic bags.  
ii. We should carry a cloth or a jute bag when we go out for shopping. 
iii. We should not use plastic bags to store eatables. 
iv. We should not put garbage in plastic bags and throw it away. 
(b)  It is better to use compost as manure than chemical fertilizers because: 
i. Making compost is cheap whereas making of chemical fertilizers is very 
expensive. 
ii. Compost is natural manure which does not harm the soil but chemical fertilizers 
are man-made chemicals which harm the soil in long run. 
 
  
  
 
CBSE  VI ¦SCIENCE 
Sample Paper - 2  Solution  
 
     
25.  
(a)  
i. Skin 
ii. Gills 
iii. Tiny pores in leaves 
iv. Lungs 
(b)  
i.  
1. Some plants store the waste products within their parts in a way that they do 
not harm the plant as a whole. 
2. Some plants remove waste products as secretions. 
ii. Reproduction 
 
26.   
(a) The maximum amount of solute which can be dissolved in a given amount of solvent 
at a specific temperature is called solubility. 
(b)  
i. All aerated drinks contain dissolved carbon dioxide. 
ii. Aquatic animals survive on the oxygen dissolved in water. 
(c) The solubility of gases in water decreases with a rise in temperature. 
During summer season, fishes in shallow ponds die because the water in the pond 
gets warm due to summer heat and as a result, the amount of dissolved oxygen in 
water decreases. 
 
27. Burning of a paper is an irreversible change. During the burning of paper, ash and 
smoke is produced. This ash and smoke cannot be converted back to the original paper, 
so it is a an irreversible change. 
When a small quantity of curd is added to warm milk, the milk is then stirred and kept 
aside for a few hours, it changes into curd. This change involves a chemical reaction, i.e. 
fermentation. This curd cannot be converted back into milk and hence it is an 
irreversible change. 
When water is boiled, it changes into steam. When this steam is cooled, water is formed 
again (condensation). So, the changing of water into steam can be reversed by cooling. 
Thus, boiling of water is a reversible change. 
When coal tar is heated, it melts to form a thick black liquid which is used in making 
and repairing roads. When this hot molten coal tar gets cooled, it solidifies again to 
form coal tar. Hence, the melting of coal tar is a reversible change. 
 
 
  
Page 5


  
 
CBSE  VI ¦SCIENCE 
Sample Paper - 2  Solution  
 
     
CBSE 
Class VI Science 
Term 2 
Sample Paper – 2 Solution 
 
SECTION A 
1. (d) 
The botanical name of touch-me-not plant is Mimosa. 
 
2.  (b) 
Giraffe reproduces by giving birth to young ones. 
 
3.  (d) 
Teeth are not present in the alimentary canal of red worms. 
 
4.  (d) 
River is not a form of precipitation as the water does not reach the Earth by this water 
body. All the others are ways by which water reaches the Earth’s surface. 
 
5.  (c) 
Churning is the process used to separate butter from buttermilk. 
 
6.  (b) 
The liquid obtained after filtration is called the filtrate. 
 
7.  (a) 
A metal surface which is freshly rubbed and cleaned using a sand paper is lustrous. This 
is because all the dust, impurities and substances formed on the surface are removed, 
and the shiny surface of the metal appears. 
 
8.  (b) 
Photosynthesis takes place only during the day. 
 
9.  (d) 
 The jute fibre is obtained from the stem and ribbon (outer skin) of the jute plant. 
 
10.  (b) 
Torch and Mobile Phone are battery powered electric appliances. 
 
11.  (b) 
When the bulb is switched on, the key gets closed, current flows and the bulb glows. 
  
 
CBSE  VI ¦SCIENCE 
Sample Paper - 2  Solution  
 
     
12.  (a) 
In an electric circuit, the direction of current is taken to be from the positive to the 
negative terminal of the electric cell as shown in Fig (i) 
 
13.  (d) 
Earth to Moon 
 
14.  (d) 
As the two magnets do not touch each other, it means that the lower portion of the 
dropped material should be of the same polarity as the top one. 
 
15.  (b) 
Magnet II has maximum strength as it attracts maximum number of steel chips. 
 
SECTION B 
                  
16.   
i. The streamlined body shape (boat shape) allows the fish to move easily in water. 
ii. This is because fishes have gills which help them to use the oxygen dissolved in 
water. Gills are unable to absorb atmospheric oxygen, due to which the fish will die 
when removed out of water. 
 
17.  Plastic bags thrown away carelessly on roads and other places get into drains and the 
sewer system. As a result, drains get choked and sewage water spills on the roads. 
During heavy rains, it might even create a flood like situation. 
18. If the saturated solution of a substance at a particular temperature is heated to a higher 
temperature, then the solubility of the substance increases and more of substance can 
be dissolved in it. 
If the saturated solution of a substance at a particular temperature is cooled to a lower 
temperature, then the solubility of the substance decreases and some of the dissolved 
substance will precipitate out in the form of solid crystals. 
 
19.   
Transparent Materials Opaque Materials 
(1) Materials through which we are able 
to see clearly are called transparent 
materials 
(1) Materials through which we are 
not able to see are called opaque 
materials. 
(2) Example: Glass, water (2) Example: Wood, book 
 
 
  
  
 
CBSE  VI ¦SCIENCE 
Sample Paper - 2  Solution  
 
     
20. Test to detect the presence of starch in food: 
(i) Take a small quantity of food to be tested. 
(ii) Add 2–3 drops of iodine solution to the food item with the help of a dropper.  
(iii) Observe for colour change, if any. The presence of a blue–black colour indicates 
the presence of starch in the food item. 
 
21.   
i. Switch 'Off' or open switch 
ii. Switch 'On' or closed switch 
 
22.   
Length of pencil  = 2 x length of compass 
= 2 x 7.5 cm= 15 cm 
Now, length of eraser = length of pencil /5 
   = 15 cm / 5 
   = 3 cm 
SECTION C 
 
23.   
(a) Garbage which does not rot when buried in the soil - plastic toys, glass jar, 
aluminium wrappers. 
    Garbage which rots when buried in the soil - Dried leaves, leftover food, egg shells. 
(b) Some materials of garbage rot and get converted into compost which acts as manure 
for plants. This compost when mixed with soil provides nutrients to the plants. 
 
24.   
(a) Ways of minimizing generation of plastic waste: 
i. We should make minimum use of plastic bags.  
ii. We should carry a cloth or a jute bag when we go out for shopping. 
iii. We should not use plastic bags to store eatables. 
iv. We should not put garbage in plastic bags and throw it away. 
(b)  It is better to use compost as manure than chemical fertilizers because: 
i. Making compost is cheap whereas making of chemical fertilizers is very 
expensive. 
ii. Compost is natural manure which does not harm the soil but chemical fertilizers 
are man-made chemicals which harm the soil in long run. 
 
  
  
 
CBSE  VI ¦SCIENCE 
Sample Paper - 2  Solution  
 
     
25.  
(a)  
i. Skin 
ii. Gills 
iii. Tiny pores in leaves 
iv. Lungs 
(b)  
i.  
1. Some plants store the waste products within their parts in a way that they do 
not harm the plant as a whole. 
2. Some plants remove waste products as secretions. 
ii. Reproduction 
 
26.   
(a) The maximum amount of solute which can be dissolved in a given amount of solvent 
at a specific temperature is called solubility. 
(b)  
i. All aerated drinks contain dissolved carbon dioxide. 
ii. Aquatic animals survive on the oxygen dissolved in water. 
(c) The solubility of gases in water decreases with a rise in temperature. 
During summer season, fishes in shallow ponds die because the water in the pond 
gets warm due to summer heat and as a result, the amount of dissolved oxygen in 
water decreases. 
 
27. Burning of a paper is an irreversible change. During the burning of paper, ash and 
smoke is produced. This ash and smoke cannot be converted back to the original paper, 
so it is a an irreversible change. 
When a small quantity of curd is added to warm milk, the milk is then stirred and kept 
aside for a few hours, it changes into curd. This change involves a chemical reaction, i.e. 
fermentation. This curd cannot be converted back into milk and hence it is an 
irreversible change. 
When water is boiled, it changes into steam. When this steam is cooled, water is formed 
again (condensation). So, the changing of water into steam can be reversed by cooling. 
Thus, boiling of water is a reversible change. 
When coal tar is heated, it melts to form a thick black liquid which is used in making 
and repairing roads. When this hot molten coal tar gets cooled, it solidifies again to 
form coal tar. Hence, the melting of coal tar is a reversible change. 
 
 
  
  
 
CBSE  VI ¦SCIENCE 
Sample Paper - 2  Solution  
 
     
28.  
(a) Sea divers carry oxygen gas cylinders along with them because there is no free 
oxygen in the sea water. The little dissolved oxygen present in water cannot be used 
for breathing by sea divers unlike aquatic animals. 
(b) Activity: Take some water in a glass vessel or a beaker. Heat it slowly using a burner 
on a tripod stand. Before the water begins to boil, look carefully at the inner surface 
of the vessel. Tiny bubbles will be seen on the inside of the vessel. These bubbles are 
of air dissolved in water. 
On heating water, the solubility of air in it decreases due to which air dissolved in 
water escapes in the form of tiny bubbles. This shows that air is dissolved in water. 
 
29.   
(a) The bulb does not glow when the safety pin is not in touch with the other drawing 
pin because the circuit is not complete due to a gap between the two drawing pins. 
Hence the switch is said to be 'off'. 
(b) Insulators: Plastic scale, rubber and thermocol. 
Conductor: Aluminium foil. 
 
30.   
(a) Like poles repel each other while unlike poles attract each other. Hence, both the 
magnets will repel each other in this case. 
(b) Bar magnet, horse-shoe magnet, cylindrical magnet and button magnet. 
 
31.   
(a) The cell passes an electric current through the torch bulb which heats up its 
filament and makes the bulb glow. 
(b) A bulb may get fused due to normal wear and tear of the filament or when too much 
electricity is passed through it suddenly. 
 
SECTION D 
32.  
(a) Potato  
(b) Reproduction 
(c) Rose plant 
(d) Excretion 
(e) Closing of flowers of certain plants after sunset / Folding of leaves of mimosa plant 
when touched. 
 
  
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