Nso Level2 Class 7 Set 4
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7
SET
4
Level - 2
Copyright © 2018 MTG Learning Media (P) Ltd. No part of this publication may be reproduced, transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the Publisher. Ownership of an ebook does not give the possessor the ebook copyright. All disputes subject to Delhi jurisdiction only.
SCIENCE 1.
Which of the following does not use heat transfer by convection? A. C.
2.
Sea Breeze Thermal blanket
Increase No effect
B. D.
Decrease Depends on weather
Why do you not prefer black paint over white paint while painting your house? A. B. C. D.
4.
B. D.
Which one of the four circuit diagrams correctly shows the circuit set-up given here ?
What effect will be on atmospheric pressure when we climb up the mountain? A. C.
3.
Hot water system Land breeze
7.
It is cheaper. It does not look good. It absorbs less heat. It absorbs more heat.
Which phenomenon is demonstrated by the experiment shown in the figure?
A. C. 8.
A. B. C. D. 5.
10.
0K Both A and B
B. D.
0°C None of these
Match column I with column II and select the correct option from the given codes. Column I Column II (i) Land breeze blows during (P) Summer (ii)
Sea breeze blows during
(iii) Dark coloured clothes are
Displacement Distance Path length Velocity
Fire Star
B. D.
Sun Earth
Ronnie went to Mc donalds which was 2 km away from his home. He took burgers and came back to his home. It took 2 hours for each side of journey. What is the average velocity of Ronnie? A. C.
11.
2 4
Which one of the following is an example of non-luminous body ? A. C.
What is the temperature difference between 27 °C and 300 K ? A. C.
6.
It shows how pin can be demagnetised. Magnetic effect of electric current. It shows how static electricity is produced. None of these
B. D.
Which one is different from other ? A. B. C. D.
9.
1 3
1 km h–1 0 km h–1
B. D.
2 km h–1 5 km h–1
Motion of Avinash is shown in the given figure. What is the average speed of journey for first 20 hours?
(Q) Winter (R) Day
preferred during (iv) Light coloured clothes are
(S)
Night
preferred during
2
A. B.
(i) – (P), (ii) – (Q), (iii) – (R), (iv) – (S) (i) – (S), (ii) – (R), (iii) – (Q), (iv) – (P)
C.
(i) – (R), (ii) – (S), (iii) – (P), (iv) – (Q)
D.
(i) – (Q), (ii) – (P), (iii) – (S), (iv) – (R)
A. C.
60 km h–1 120 km h–1
B. D.
90 km h–1 30 km h–1 Class-7 | Level 2
12.
Komal and Kavita are standing in front of a plane mirror as shown in the figure. When Komal looks into the mirror, how far away from her will image of Kavita seem to be? (I)
A. C.
13.
B. D.
16 m 20 m
Red Black
B. D.
15.
16.
A.
I only
C.
I and III only
18.
B. D.
II and IV only I, II and IV only
I. II. III. A. C. 21.
(i)-Charcoal, (ii) - Reversible change (i)-Carbon black, (ii) - Irreversible change (i) -Sugar powder, (ii) - Irreversible change (ii)-Charcoal, (ii) - Irreversible change
Two conical flasks labelled as I and II were taken. Observe the given figure carefully and identify in which of the conical flasks, rusting of iron nail will take place?
Class-7 | Level 2
Condensation of steam is a chemical change. Iron pipes coated with chromium do not get rusted easily. Salty water makes the process of rusting slower. I only B. II only II and III only D. I and III only.
Read the given statements and mark the correct option. Statement 1 : Acid rain causes damage to plants, animals and buildings. Statement 2 : Some air pollutants get converted to acids on dissolving in rain water. A. Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1. B. Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1. C. Statement 1 is true and statement 2 is false. D. Statement 1 is false and statement 2 is true.
When sugar is heated, it melts and gets converted into a brown substance and then finally to a black substance known as (i) . The change involved in it is (ii) .
Identify X and Y. I. Milk of Magnesia : X : : Soap : Sodium hydroxide II. Ascorbic acid : Y : : Citric acid : Oranges A. X : Mg(OH)2 , Y : Amla B. X : MgCO3, Y : lemon C. X : Ca(OH)2 , Y : Grapes D. X : NaOH, Y : Amla
II only Neither in I nor in II
Choose the correct statement.
Which of the following statements is/are correct? I Salts are formed as a result of neutralisation reaction. II Chlorine gas is produced when zinc reacts with hydrochloric acid. III Heat is required for neutralisation reaction. IV All bases are alkalies but all alkalies are not bases.
A. B. C. D. 17.
Monochromatic, (ii). Parallel, (iii) Regular. Parallel, (ii) Parallel, (iii) Regular. Monochromatic, (ii) Parallel, (iii) Diffused Parallel, (ii) Parallel, (iii) Diffused.
B. D.
20.
Green Yellow
When a (i) rays of light hits a smooth surface, it is reflected as a (ii) rays and this reflection is said to be (iii) reflection. (i) (i) (i) (i)
I only Both I and II
Read the given passage and fill in the blanks by selecting an appropriate option. (i) (ii) is used to _____ is used to treat bee sting while _____ treat wasp sting. A milkman adds a very small amount of (iii) to fresh milk during summer season while a farmer ____ adds (iv) ____ to the soil if he finds that his crops are not growing well. (i) (ii) (iii) (iv) A. Baking soda Vinegar Baking soda Quick lime B. Vinegar Calamine Lactic acid Slaked lime C. Sodium Vinegar Slaked lime Quick lime carbonate D. Vinegar Calamine Lactic acid Slaked lime
Fill in the blanks with the most appropriate option.
A. B. C. D.
(II)
19.
A red T-shirt appears _______ under green light. A. C.
14.
11 m 6m
Boiled distilled water
Tap water
6m
A. C.
Sealed
Open
22.
Select the correct statement. I. II. III. IV. A. C.
Ozone acts as natural sheild against UV radiation. Acetic acid is an organic acid. Iron sulphate solution is green in colour. Ammonium hydroxide is present in window cleaners. I, III and IV only B. II and III only I and IV only D. I, II, III and IV 3
23.
The given list shows the five steps to show that plants store food in form of starch but in a random order.
27.
(i) (ii)
Pluck a leaf from the plant. Leave a potted plant out in the sun for a few hour. (iii) Wash the leaf and then add a few drops of iodine solution over it. (iv) Boil the leaf in alcohol. (v) Boil the leaf in water. Select the option with correct order of these steps. A. (i), (ii), (iii), (iv), (v) B. (i), (ii), (iv), (iii), (v) C. (ii), (i), (v), (iv), (iii) D. (ii), (i), (v), (iii), (iv) 24.
A. B. C. D.
Read the given paragraph. (i) is small, multicellular animal. It has number of (ii) around its mouth, which are used for ingestion of food. The (ii) then push the food int o (iii) . Inside the body cavity, the (iv) secreted by the surrounding cells help to digest the food.
28.
25.
(i) (ii) Hydra Cilia Paramoecium Cilia
C.
Paramoecium Tentacles
D.
Hydra
B. C. D.
4
Column II (a) Partial parasitic (b) Insectivorous Mistletoe (c) Total parasitic (i)-(a), (ii)-(b), (iii)-(c) (i)-(b), (ii)-(a), (iii)-(c) (i)-(c), (ii)-(b), (iii)-(a) (i)-(c), (ii)-(a), (iii)-(b)
Read the following statements and select the incorrect one. A.
A. B. C. D.
Digestive juices
Column I Cuscuta Dionaea
The liver is a reddish-brown coloured largest gland, situated on the left side, just above the stomach. Saliva contains enzymes to break down the insoluble starch of the food into soluble sugar. There is a flap-like structure called epiglottis, which closes the wind pipe while eating. In ruminants, the fourth chamber of stomach is abomasum which is called true stomach.
Read the given statements and select the correct option.
Statement 2 : Shearing relieves the animal from warm covering on its body in the hot weather.
(iv) Saliva Digestive juices Saliva
Match column I with column II and select the correct option from the codes given below. (i) (ii) (iii) A. B. C. D.
26.
Tentacles
(iii) Mouth Body cavity Body cavity Mouth
'X' is the liver, which stores bile juice. 'Y' is gall bladder, which secretes bile juice. 'Z' is pancreas, which secretes digestive juices. All of these
Statement 1 : Shearing of sheep is done during early summer.
Select the option which correctly fills the blanks (i-iv). A. B.
Refer to the given figure showing the labelled parts X, Y and Z. Identify X, Y and Z and select the correct option regarding it.
29.
Select the industry with which sorter's disease is associated. A. C.
30.
Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1. Both statements 1 and 2 are true but statement 2 is the not correct explanation of statement 1. Statement 1 is true but statement 2 is false. Both statements 1 and 2 are false.
Silk Jute
B. D.
Wool None of these
Read the following statements. (i)
The process of making yarn from fibres is called _____. (ii) The process of unwinding the silk filaments from the cocoon and combining them together to make a thread of raw silk is called _____. (iii) _____ refers to the wool obtained from angora goat. (iv) _____ is a fibre, which resembles silk. Select the option which correctly fills the blanks in any two of the above statements. A. B. C. D.
(i) Spinning, (iii) Angora (ii) Bailing, (iii) Angora (ii) Reeling, (iv) Rayon (i) Carding, (iv) Rayon Class-7 | Level 2
31.
Read the following statements carefully and select the option which correctly identifies true (T) and false (F) ones. Climate is the average weather condition of a place over a long period of time. (ii) Weather conditions depend upon temperature, humidity and rainfall at a place. (iii) In polar bear the blubber acts as an insulator. (iv) In the layers of rainforest, below the emergent layer there is dense layer called understorey. (i) (ii) (iii) (iv) A. T T F F B. T T T F C. T F T F D. T F F F
A. B. C. D.
(i)
32.
A. B. C. D.
Column I Toucan Red-eyed tree frog Penguin Asian elephant
Column II (a) Flippers (b) Sticky pads on its feet (c) Silver white mane (d) Primarily frugivorous (e) Tusks (i)-(c), (ii)-(b), (iii)-(a), (iv)-(e) (i)-(d), (ii)-(b), (iii)-(a), (iv)-(e) (i)-(c), (ii)-(b), (iii)-(d), (iv)-(e) (i)-(a), (ii)-(b), (iii)-(d), (iv)-(c)
Which of the following statements are correct? Percolation rate of water is highest in sandy soil and lowest in clayey soil. (ii) Clayey soil is most suitable for growing plants. (iii) The space between sand particles is very little. (iv) Loamy soil has high humus content. A. B. C. D.
36.
B.
C.
D.
37.
34.
Rainfall Cyclone
B. D.
(ii) and (iv) only (i) and (iv) only (i) and (iii) only (iii) and (iv) only
The given figure shows the layers of soil P, Q, R and S. Identify them and select the correct statement regarding them. A.
Observe the given figure of an instrument which is used to measure _______.
A. C.
(ii), (iii) and (vi) only (iii), (iv) and (v) only (ii) and (iii) only (ii), (iii) and (vi) only
(i)
Match column I with column II and select the correct option from the given codes . (i) (ii) (iii) (iv)
33.
35.
(i), (i), (i), (i),
'P' is topsoil which is dark in colour and contains fine particles of soil. 'R' is the weathered rock and contains humus. 'Q ' is the subsoil which is non-porous and impervious. 'S ' is the bedrock which contains weathered rock materials, silk and clay.
Lion in the given food web is
Earthquake Humidity
Which of the following adaptations of camel help him for the survival in desert conditions? (i) (ii) (iii) (iv) (v) (vi)
Slit like nostrils Leathery kneepads Hump Small eyes Small and bushy eyelashes Large ears
Class-7 | Level 2
A. B. C. D.
Primary and topmost consumer. Secondary and topmost consumer. Tertiary and topmost consumer. Both B and C 5
38.
During inhalation, the rib cage is pulled (i) and , (ii) and the diaphragm moves (iii) . This (iv) the volume of thoracic cavity and the air pressure inside the lungs (v) .
42.
Read the following statements and select the correct option. Statement 1 : In heart, blood flows only from atria to ventricles. Statement 2 : The valves present inside the heart prevents backfl ow of blood from ventricles to atria. A. Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1. B. Both statements 1 and 2 are true but statement 2 is not the correct explanation of statements 1. C. Statement 1 is true but statement 2 is false. D. Both statements 1 and 2 are false.
43.
The figure below shows a balsam plant. What will happen to the plant after one day? A. The stem of the plant breaks away. Water with red B. The roots of the plant coloured ink die. C. The leaves of the plant are shed. D. The stem of the plant becomes red in colour.
44.
Given below are the flowers of two plants of same kind.
Complete the above paragraph by selecting the correct option. A. B. C. D. 39.
Which of the following statements is incorrect? A.
As a result of sneezing, unwanted particles are thrown out of the body.
B.
Trachea is divided into two bronchi which lead to the lungs on their respective side. The alveoli of lungs are not supplied with blood vessels. Breathing rate does not remain same under different conditions.
C. D. 40.
(i) upward, (ii) outward, (iii) down, (iv) increases, (v) decreases (i) downward, (ii) inward, (iii) up, (iv) decreases, (v) increases (i) upward, (ii) outward, (iii) down, (iv) decreases, (v) increases (i) downward, (ii) inward, (iii) up, (iv) increases, (v) decreases
The four structures listed below are parts of the human excretory system. 1. 3.
Bladder Ureter
2. 4.
Kidney Urethra
In which order does urine pass through these structures? A. B. C. D. 41.
1 1 2 2
®2® ®4® ® 1® ® 3®
3® 3® 3® 1®
4 2 4 4
Select the correct option for X and Y in the given figure. X Y A. Cross-pollination Cross-pollination B. Self-pollination Cross-pollination C. Self-pollination Self-pollination D. Cross-pollination Self-pollination
Study the given flow chart. Found in roots Yes
Found in stem
45.
No
W
Ye s
Found in leaf
No
X
Match the different organisms in column I with their respective methods of reproduction in column II and select the correct option from the codes given below.
Yes
Transports water
No
Transports food Ye s
Ye s
Y Which labelled part represent phloem? A. W B. Z C. X D. Y
6
Z
(a) (b) (c) (d) A. B. C. D.
Column I Column II Bougainvillea (i) Cutting Spirogyra (ii) Layering Apple (iii) Fragmentation Jasmine (iv) Grafting (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i) (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv) (a)-(i), (b)-(iii), (c)-(iv), (d)-(ii) (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii) Class-7 | Level 2
ACHIEVERS SECTION 46.
47.
A.
B.
C.
D.
49.
R-Silk R-Cotton R-Nylon R-Wool
Identify the labels (1, 2 and 3) in the given figure showing exchange of gases between alveoli and blood capillaries. Select the correct option.
Smita tested the nature of a few common substances with turmeric solution and recorded her observations in the given table. Colour of turmeric solution Initial Final (Yellow) (Red)
S.No
Sample solution
1.
Shampoo
ü
û
2.
Baking soda
ü
ü
3.
Vinegar
ü
ü
4.
Sugar solution Curd
ü
ü
ü
û
5.
A. B. C. D. 50.
The incorrect observations are A. C. 48.
Identify P, Q and R. A. P-Polyester, Q-Cotton, B. P-Acrylic, Q-Wool, C. P-Cotton, Q-Wool, D. P-Cotton, Q-Acrylic,
The diagram shows a method to magnetise an iron nail. In which diagram will the iron nail become an induced magnet?
2 and 4 only 2 and 5 only
B. D.
1 and 3 only 1, 3 and 4 only
Rohit took three fabrics P, Q and R and pulled out few fibres from each of them. He then burnt them one by one. His result is shown in the given table. Fibre P Q R
Burning characteristics Smell of burnt paper, does not shrink away Smell of burning hair, curls away from flame Obnoxious, melts with flame
1 CO2 O2 RBCs CO2
2 O2 CO2 O2 RBCs
3 RBCs RBCs CO2 O2
Read the given statements made by four students. Rohan : Grass, maize and wheat are wind pollinated plants. Nitika : P ol len g r a in s ar e f orme d i n s id e t he filament. Tanu : Spirogyra is a multicellular green algae, found in fresh water ponds and in slow streams. Amit : The examples of bisexual flowers are mustard, rose and date palm. Which of these students have made incorrect statements? A. Rohan and Tanu B. Nitika and Amit C. Nitika and Tanu D. Rohan and Amit
SPACE FOR ROUGH WORK
Class-7 | Level 2
7
SET
4
Level - 2
Copyright © 2018 MTG Learning Media (P) Ltd. No part of this publication may be reproduced, transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the Publisher. Ownership of an ebook does not give the possessor the ebook copyright. All disputes subject to Delhi jurisdiction only.
SCIENCE 1.
Which of the following does not use heat transfer by convection? A. C.
2.
Sea Breeze Thermal blanket
Increase No effect
B. D.
Decrease Depends on weather
Why do you not prefer black paint over white paint while painting your house? A. B. C. D.
4.
B. D.
Which one of the four circuit diagrams correctly shows the circuit set-up given here ?
What effect will be on atmospheric pressure when we climb up the mountain? A. C.
3.
Hot water system Land breeze
7.
It is cheaper. It does not look good. It absorbs less heat. It absorbs more heat.
Which phenomenon is demonstrated by the experiment shown in the figure?
A. C. 8.
A. B. C. D. 5.
10.
0K Both A and B
B. D.
0°C None of these
Match column I with column II and select the correct option from the given codes. Column I Column II (i) Land breeze blows during (P) Summer (ii)
Sea breeze blows during
(iii) Dark coloured clothes are
Displacement Distance Path length Velocity
Fire Star
B. D.
Sun Earth
Ronnie went to Mc donalds which was 2 km away from his home. He took burgers and came back to his home. It took 2 hours for each side of journey. What is the average velocity of Ronnie? A. C.
11.
2 4
Which one of the following is an example of non-luminous body ? A. C.
What is the temperature difference between 27 °C and 300 K ? A. C.
6.
It shows how pin can be demagnetised. Magnetic effect of electric current. It shows how static electricity is produced. None of these
B. D.
Which one is different from other ? A. B. C. D.
9.
1 3
1 km h–1 0 km h–1
B. D.
2 km h–1 5 km h–1
Motion of Avinash is shown in the given figure. What is the average speed of journey for first 20 hours?
(Q) Winter (R) Day
preferred during (iv) Light coloured clothes are
(S)
Night
preferred during
2
A. B.
(i) – (P), (ii) – (Q), (iii) – (R), (iv) – (S) (i) – (S), (ii) – (R), (iii) – (Q), (iv) – (P)
C.
(i) – (R), (ii) – (S), (iii) – (P), (iv) – (Q)
D.
(i) – (Q), (ii) – (P), (iii) – (S), (iv) – (R)
A. C.
60 km h–1 120 km h–1
B. D.
90 km h–1 30 km h–1 Class-7 | Level 2
12.
Komal and Kavita are standing in front of a plane mirror as shown in the figure. When Komal looks into the mirror, how far away from her will image of Kavita seem to be? (I)
A. C.
13.
B. D.
16 m 20 m
Red Black
B. D.
15.
16.
A.
I only
C.
I and III only
18.
B. D.
II and IV only I, II and IV only
I. II. III. A. C. 21.
(i)-Charcoal, (ii) - Reversible change (i)-Carbon black, (ii) - Irreversible change (i) -Sugar powder, (ii) - Irreversible change (ii)-Charcoal, (ii) - Irreversible change
Two conical flasks labelled as I and II were taken. Observe the given figure carefully and identify in which of the conical flasks, rusting of iron nail will take place?
Class-7 | Level 2
Condensation of steam is a chemical change. Iron pipes coated with chromium do not get rusted easily. Salty water makes the process of rusting slower. I only B. II only II and III only D. I and III only.
Read the given statements and mark the correct option. Statement 1 : Acid rain causes damage to plants, animals and buildings. Statement 2 : Some air pollutants get converted to acids on dissolving in rain water. A. Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1. B. Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1. C. Statement 1 is true and statement 2 is false. D. Statement 1 is false and statement 2 is true.
When sugar is heated, it melts and gets converted into a brown substance and then finally to a black substance known as (i) . The change involved in it is (ii) .
Identify X and Y. I. Milk of Magnesia : X : : Soap : Sodium hydroxide II. Ascorbic acid : Y : : Citric acid : Oranges A. X : Mg(OH)2 , Y : Amla B. X : MgCO3, Y : lemon C. X : Ca(OH)2 , Y : Grapes D. X : NaOH, Y : Amla
II only Neither in I nor in II
Choose the correct statement.
Which of the following statements is/are correct? I Salts are formed as a result of neutralisation reaction. II Chlorine gas is produced when zinc reacts with hydrochloric acid. III Heat is required for neutralisation reaction. IV All bases are alkalies but all alkalies are not bases.
A. B. C. D. 17.
Monochromatic, (ii). Parallel, (iii) Regular. Parallel, (ii) Parallel, (iii) Regular. Monochromatic, (ii) Parallel, (iii) Diffused Parallel, (ii) Parallel, (iii) Diffused.
B. D.
20.
Green Yellow
When a (i) rays of light hits a smooth surface, it is reflected as a (ii) rays and this reflection is said to be (iii) reflection. (i) (i) (i) (i)
I only Both I and II
Read the given passage and fill in the blanks by selecting an appropriate option. (i) (ii) is used to _____ is used to treat bee sting while _____ treat wasp sting. A milkman adds a very small amount of (iii) to fresh milk during summer season while a farmer ____ adds (iv) ____ to the soil if he finds that his crops are not growing well. (i) (ii) (iii) (iv) A. Baking soda Vinegar Baking soda Quick lime B. Vinegar Calamine Lactic acid Slaked lime C. Sodium Vinegar Slaked lime Quick lime carbonate D. Vinegar Calamine Lactic acid Slaked lime
Fill in the blanks with the most appropriate option.
A. B. C. D.
(II)
19.
A red T-shirt appears _______ under green light. A. C.
14.
11 m 6m
Boiled distilled water
Tap water
6m
A. C.
Sealed
Open
22.
Select the correct statement. I. II. III. IV. A. C.
Ozone acts as natural sheild against UV radiation. Acetic acid is an organic acid. Iron sulphate solution is green in colour. Ammonium hydroxide is present in window cleaners. I, III and IV only B. II and III only I and IV only D. I, II, III and IV 3
23.
The given list shows the five steps to show that plants store food in form of starch but in a random order.
27.
(i) (ii)
Pluck a leaf from the plant. Leave a potted plant out in the sun for a few hour. (iii) Wash the leaf and then add a few drops of iodine solution over it. (iv) Boil the leaf in alcohol. (v) Boil the leaf in water. Select the option with correct order of these steps. A. (i), (ii), (iii), (iv), (v) B. (i), (ii), (iv), (iii), (v) C. (ii), (i), (v), (iv), (iii) D. (ii), (i), (v), (iii), (iv) 24.
A. B. C. D.
Read the given paragraph. (i) is small, multicellular animal. It has number of (ii) around its mouth, which are used for ingestion of food. The (ii) then push the food int o (iii) . Inside the body cavity, the (iv) secreted by the surrounding cells help to digest the food.
28.
25.
(i) (ii) Hydra Cilia Paramoecium Cilia
C.
Paramoecium Tentacles
D.
Hydra
B. C. D.
4
Column II (a) Partial parasitic (b) Insectivorous Mistletoe (c) Total parasitic (i)-(a), (ii)-(b), (iii)-(c) (i)-(b), (ii)-(a), (iii)-(c) (i)-(c), (ii)-(b), (iii)-(a) (i)-(c), (ii)-(a), (iii)-(b)
Read the following statements and select the incorrect one. A.
A. B. C. D.
Digestive juices
Column I Cuscuta Dionaea
The liver is a reddish-brown coloured largest gland, situated on the left side, just above the stomach. Saliva contains enzymes to break down the insoluble starch of the food into soluble sugar. There is a flap-like structure called epiglottis, which closes the wind pipe while eating. In ruminants, the fourth chamber of stomach is abomasum which is called true stomach.
Read the given statements and select the correct option.
Statement 2 : Shearing relieves the animal from warm covering on its body in the hot weather.
(iv) Saliva Digestive juices Saliva
Match column I with column II and select the correct option from the codes given below. (i) (ii) (iii) A. B. C. D.
26.
Tentacles
(iii) Mouth Body cavity Body cavity Mouth
'X' is the liver, which stores bile juice. 'Y' is gall bladder, which secretes bile juice. 'Z' is pancreas, which secretes digestive juices. All of these
Statement 1 : Shearing of sheep is done during early summer.
Select the option which correctly fills the blanks (i-iv). A. B.
Refer to the given figure showing the labelled parts X, Y and Z. Identify X, Y and Z and select the correct option regarding it.
29.
Select the industry with which sorter's disease is associated. A. C.
30.
Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1. Both statements 1 and 2 are true but statement 2 is the not correct explanation of statement 1. Statement 1 is true but statement 2 is false. Both statements 1 and 2 are false.
Silk Jute
B. D.
Wool None of these
Read the following statements. (i)
The process of making yarn from fibres is called _____. (ii) The process of unwinding the silk filaments from the cocoon and combining them together to make a thread of raw silk is called _____. (iii) _____ refers to the wool obtained from angora goat. (iv) _____ is a fibre, which resembles silk. Select the option which correctly fills the blanks in any two of the above statements. A. B. C. D.
(i) Spinning, (iii) Angora (ii) Bailing, (iii) Angora (ii) Reeling, (iv) Rayon (i) Carding, (iv) Rayon Class-7 | Level 2
31.
Read the following statements carefully and select the option which correctly identifies true (T) and false (F) ones. Climate is the average weather condition of a place over a long period of time. (ii) Weather conditions depend upon temperature, humidity and rainfall at a place. (iii) In polar bear the blubber acts as an insulator. (iv) In the layers of rainforest, below the emergent layer there is dense layer called understorey. (i) (ii) (iii) (iv) A. T T F F B. T T T F C. T F T F D. T F F F
A. B. C. D.
(i)
32.
A. B. C. D.
Column I Toucan Red-eyed tree frog Penguin Asian elephant
Column II (a) Flippers (b) Sticky pads on its feet (c) Silver white mane (d) Primarily frugivorous (e) Tusks (i)-(c), (ii)-(b), (iii)-(a), (iv)-(e) (i)-(d), (ii)-(b), (iii)-(a), (iv)-(e) (i)-(c), (ii)-(b), (iii)-(d), (iv)-(e) (i)-(a), (ii)-(b), (iii)-(d), (iv)-(c)
Which of the following statements are correct? Percolation rate of water is highest in sandy soil and lowest in clayey soil. (ii) Clayey soil is most suitable for growing plants. (iii) The space between sand particles is very little. (iv) Loamy soil has high humus content. A. B. C. D.
36.
B.
C.
D.
37.
34.
Rainfall Cyclone
B. D.
(ii) and (iv) only (i) and (iv) only (i) and (iii) only (iii) and (iv) only
The given figure shows the layers of soil P, Q, R and S. Identify them and select the correct statement regarding them. A.
Observe the given figure of an instrument which is used to measure _______.
A. C.
(ii), (iii) and (vi) only (iii), (iv) and (v) only (ii) and (iii) only (ii), (iii) and (vi) only
(i)
Match column I with column II and select the correct option from the given codes . (i) (ii) (iii) (iv)
33.
35.
(i), (i), (i), (i),
'P' is topsoil which is dark in colour and contains fine particles of soil. 'R' is the weathered rock and contains humus. 'Q ' is the subsoil which is non-porous and impervious. 'S ' is the bedrock which contains weathered rock materials, silk and clay.
Lion in the given food web is
Earthquake Humidity
Which of the following adaptations of camel help him for the survival in desert conditions? (i) (ii) (iii) (iv) (v) (vi)
Slit like nostrils Leathery kneepads Hump Small eyes Small and bushy eyelashes Large ears
Class-7 | Level 2
A. B. C. D.
Primary and topmost consumer. Secondary and topmost consumer. Tertiary and topmost consumer. Both B and C 5
38.
During inhalation, the rib cage is pulled (i) and , (ii) and the diaphragm moves (iii) . This (iv) the volume of thoracic cavity and the air pressure inside the lungs (v) .
42.
Read the following statements and select the correct option. Statement 1 : In heart, blood flows only from atria to ventricles. Statement 2 : The valves present inside the heart prevents backfl ow of blood from ventricles to atria. A. Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1. B. Both statements 1 and 2 are true but statement 2 is not the correct explanation of statements 1. C. Statement 1 is true but statement 2 is false. D. Both statements 1 and 2 are false.
43.
The figure below shows a balsam plant. What will happen to the plant after one day? A. The stem of the plant breaks away. Water with red B. The roots of the plant coloured ink die. C. The leaves of the plant are shed. D. The stem of the plant becomes red in colour.
44.
Given below are the flowers of two plants of same kind.
Complete the above paragraph by selecting the correct option. A. B. C. D. 39.
Which of the following statements is incorrect? A.
As a result of sneezing, unwanted particles are thrown out of the body.
B.
Trachea is divided into two bronchi which lead to the lungs on their respective side. The alveoli of lungs are not supplied with blood vessels. Breathing rate does not remain same under different conditions.
C. D. 40.
(i) upward, (ii) outward, (iii) down, (iv) increases, (v) decreases (i) downward, (ii) inward, (iii) up, (iv) decreases, (v) increases (i) upward, (ii) outward, (iii) down, (iv) decreases, (v) increases (i) downward, (ii) inward, (iii) up, (iv) increases, (v) decreases
The four structures listed below are parts of the human excretory system. 1. 3.
Bladder Ureter
2. 4.
Kidney Urethra
In which order does urine pass through these structures? A. B. C. D. 41.
1 1 2 2
®2® ®4® ® 1® ® 3®
3® 3® 3® 1®
4 2 4 4
Select the correct option for X and Y in the given figure. X Y A. Cross-pollination Cross-pollination B. Self-pollination Cross-pollination C. Self-pollination Self-pollination D. Cross-pollination Self-pollination
Study the given flow chart. Found in roots Yes
Found in stem
45.
No
W
Ye s
Found in leaf
No
X
Match the different organisms in column I with their respective methods of reproduction in column II and select the correct option from the codes given below.
Yes
Transports water
No
Transports food Ye s
Ye s
Y Which labelled part represent phloem? A. W B. Z C. X D. Y
6
Z
(a) (b) (c) (d) A. B. C. D.
Column I Column II Bougainvillea (i) Cutting Spirogyra (ii) Layering Apple (iii) Fragmentation Jasmine (iv) Grafting (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i) (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv) (a)-(i), (b)-(iii), (c)-(iv), (d)-(ii) (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii) Class-7 | Level 2
ACHIEVERS SECTION 46.
47.
A.
B.
C.
D.
49.
R-Silk R-Cotton R-Nylon R-Wool
Identify the labels (1, 2 and 3) in the given figure showing exchange of gases between alveoli and blood capillaries. Select the correct option.
Smita tested the nature of a few common substances with turmeric solution and recorded her observations in the given table. Colour of turmeric solution Initial Final (Yellow) (Red)
S.No
Sample solution
1.
Shampoo
ü
û
2.
Baking soda
ü
ü
3.
Vinegar
ü
ü
4.
Sugar solution Curd
ü
ü
ü
û
5.
A. B. C. D. 50.
The incorrect observations are A. C. 48.
Identify P, Q and R. A. P-Polyester, Q-Cotton, B. P-Acrylic, Q-Wool, C. P-Cotton, Q-Wool, D. P-Cotton, Q-Acrylic,
The diagram shows a method to magnetise an iron nail. In which diagram will the iron nail become an induced magnet?
2 and 4 only 2 and 5 only
B. D.
1 and 3 only 1, 3 and 4 only
Rohit took three fabrics P, Q and R and pulled out few fibres from each of them. He then burnt them one by one. His result is shown in the given table. Fibre P Q R
Burning characteristics Smell of burnt paper, does not shrink away Smell of burning hair, curls away from flame Obnoxious, melts with flame
1 CO2 O2 RBCs CO2
2 O2 CO2 O2 RBCs
3 RBCs RBCs CO2 O2
Read the given statements made by four students. Rohan : Grass, maize and wheat are wind pollinated plants. Nitika : P ol len g r a in s ar e f orme d i n s id e t he filament. Tanu : Spirogyra is a multicellular green algae, found in fresh water ponds and in slow streams. Amit : The examples of bisexual flowers are mustard, rose and date palm. Which of these students have made incorrect statements? A. Rohan and Tanu B. Nitika and Amit C. Nitika and Tanu D. Rohan and Amit
SPACE FOR ROUGH WORK
Class-7 | Level 2
7
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