NSO Class 7th - Mock Test 3 Books

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Question 1
1 / -0

In the following question, there is a relationship between the two terms to the left of : : and the same relationship exists between the two terms to its right, out of which one term is missing. Choose the missing term from the given options.

HORSE : STABLE :: RABBIT : ?

A
Burrows

B
Shed

C
Hole

D
Den

Question 2
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Arrange the words given below in a meaningful sequence.

1. House
2. Street
3. Room
4. Town
5. District

A
3, 2, 1, 4, 5

B
3, 1, 4, 2, 5

C
3, 1, 2, 4, 5

D
3, 1, 2, 5, 4

Question 3
1 / -0

Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.

11, 13, 17, 19, 23, 25, ?

A
26

B
27

C
29

D
37

Question 4
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A is a metallic plate and B is a wooden plate. A feels colder as compared to B during winters. Which of the following properties of the metallic plate causes this effect?

A
It is a bad conductor of heat.

B
It is a good conductor of heat.

C
The metallic plate has a shiny surface.

D
None of these

Question 5
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The temperature of Raj's room is 25°C, while that of Simran's room is 77°F. Choose the correct option describing the situation.

A
The temperature of Raj's room is more than the temperature of Simran's room.

B
The temperature of Simran's room is more than that of Raj's room.

C
Both rooms have the same temperature.

D
Nothing can be said.

Question 6
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Motion of hands while running is known as ________.

A
Translatory Motion

B
Rectilinear Motion

C
Oscillatory Motion

D
Non-periodic Motion

Question 7
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What is the combination of two or more cells known as?

A
Remote

B
Battery

C
Spark

D
Charge

Question 8
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Which of the following devices is based on the heating effect of electric current and is used for safety?

A
Fuse

B
Switch

C
Power Plug

D
Electric Socket

Question 9
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Which property of air is responsible for making holes in big banners, meant for promotional purposes?

A
Air takes space.

B
Air can be compressed.

C
Air exerts pressure.

D
Air is affected by heat.

Question 10
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Which of the following option is true for the eye of a cyclone?

A
The eye of cyclone is a high pressure area.

B
The eye of cyclone is a low pressure area.

C
The eye of cyclone has a diameter of 5 km to 10 km.

D
The eye of cyclone has a radius of 5 to 10 km.

Question 11
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Which of the following options is/are TRUE?

A
Algae contain chlorophyll which gives them the green colour.

B
The main components present in carbohydrates are carbon, hydrogen and oxygen.

C
Stomata are the tiny pores present on the surface of leaves, which help in exchange of gases.

D
All of the above

Question 12
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Which of the following is used by a dentist to see the enlarged image of teeth of patients?

A
Concave lens

B
Convex lens

C
Concave mirror

D
Plane mirror

Question 13
1 / -0

Which of the following options is TRUE?

A
Most liquids that conduct electricity are solutions of acids, bases and salts.

B
The passage of electric current through a solution causes a chemical effect.

C
If you pass current through a copper sulphate solution, copper gets deposited on the plate connected to the negative terminal of the battery.

D
All of the above

Question 14
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Y is a substance that contains zinc carbonate, having basic nature, and is applied to the skin when an ant bites.
By which of the following names is Y commonly known?

A
Calamine solution

B
Ammonia

C
Milk of Magnesia

D
Antacid

Question 15
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'A' is a chemical substance that turns the china rose indicator dark pink in colour.
What is the chemical nature of 'A'?

A
An acid

B
A base

C
A salt

D
None of these

Question 16
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Which of the following substances can turn the blue litmus paper red?

A
HCl

B
Calamine

C
H₂O

D
NH₃

Question 17
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Which of the following options is basic in nature and is used in household products for cleaning purposes?

A
Milk of magnesia

B
NH₃

C
NaOH

D
KOH

Question 18
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Which of the following indicators can be used to detect the acidic nature of vinegar?

A. Phenolphthalein
B. Turmeric
C. Methyl orange
D. Litmus

A
C and D

B
A and B

C
A and C

D
B and D

Question 19
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Which of the following options can turn the turmeric indicator red?

A
HCl

B
NaOH

C
HNO₃

D
CH₃COOH

Question 20
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X is the process of depositing a layer of zinc on iron, in order to prevent rusting.
What is the process called?

A
Painting

B
Electroplating

C
Alloy formation

D
Galvanisation

Question 21
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The process X, is digestion of animal waste and production of biogas.
The process Y is the use of biogas as fuel.

Choose the correct option illustrating the processes X and Y?

A
X is a chemical change and Y is a physical change.

B
X is a physical change and Y is a chemical change.

C
Both the processes involve physical changes.

D
Both the processes involve chemical changes.

Question 22
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Which of the following options is not a chemical change?

A
Digestion of food

B
Alloying of metals

C
Setting of curd

D
Baking of cookies

Question 23
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It is an animal and its adaptation is that it is white in colour in order to merge into the background, and its streamlined body and webbed feet make it a swift swimmer. Name the animal.

A
Sea turtle

B
Penguin

C
Snow leopard

D
Arctic fox

Question 24
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Jack is a meteorologist. Which device is used by Jack to measure the rainfall?

A
Odometer

B
Thermometer

C
Anemometer

D
Ombrometer

Question 25
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In which of the following regions, would animals have adaptations like sticky pads, loud voice, bright colours, strong tails?

A
Tropical rainforests

B
Deserts

C
Polar regions

D
Aquatic regions

Question 26
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Which of the following options shows the correct order of processes given below to make finished wool?

1. Shearing
2. Straightening, Combing and Rolling
3. Sorting
4. Dyeing
5. Scouring

A
1, 2, 3, 4, 5

B
1, 5, 3, 4, 2

C
1, 5, 3, 2, 4

D
5, 4, 3, 2, 1

Question 27
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Dhruvan rears silkworms to obtain silk from them. What is this process known as?

A
Sericulture

B
Silviculture

C
Vermiculture

D
Apiculture

Question 28
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It is an organism that survives on dead and decaying organic matter. Which of the following is this organism?

A
Amoeba

B
Cuscuta

C
Fungus

D
Pitcher plant

Question 29
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Which of the following organisms live in partnership, so that they benefit from one another?

A
Decomposers

B
Saprotrophs

C
Omnivores

D
Symbionts

Question 30
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Which of the following is true for saprotrophic nutrition?

A
Organisms give away nutrients in solution form from dead and decaying matter.

B
Organisms take in nutrients in solution form from fresh matter.

C
Organisms take in nutrients in solution form from dead and decaying matter.

D
Organisms take in nutrients in solution form from animals.

Question 31
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The movement shown by a plant in response to water is called

A
geotropism

B
hydrotropism

C
phototropism

D
chemotropism

Question 32
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Which plant hormone promotes cell division?

A
Cytokinin

B
Gibberellin

C
Auxin

D
Ethylene

Question 33
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Which of the following factors affect(s) photosynthesis?

(i) Temperature
(ii) Light intensity
(iii) Oxygen

A
Only (i)

B
Only (i) and (ii)

C
Only (ii) and (iii)

D
All (i), (ii) and (iii)

Question 34
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Which of the following is present in plant cell but absent in animal cell?

A
Ribosome

B
Plastid

C
Mitochondrion

D
Cytoplasm

Question 35
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Which two gases do plants excrete during excretion?

A
Nitrogen and Oxygen

B
Carbon dioxide and Oxygen

C
Carbon dioxide and Nitrogen

D
Hydrogen and Nitrogen

Question 36
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The process to move sugar in plants is called

A
translocation

B
adhesion

C
osmosis

D
transpiration

Question 37
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Which of the following are very large ecological areas on earth's surface, with fauna and flora (animals and plants) adapting to their environments?

A
Geospheres

B
Biospheres

C
Ecosystems

D
Biomes

Question 38

1 / -0

Match the given factors that take place during ascent of sap with their functions.

Factors	Functions
(i) Capillary action	P. Water molecules make a continuous column inside the xylem tubes
(ii) Root pressure	Q. Removal of water vapour in plants creating a pull in the xylem tissue
(iii) Adhesion cohesion	R. Pushes the water further up
(iv) Transpiration pull	S. Responsible for the rise of water to some height

(i) – S, (ii) – R, (iii) – P, (iv) – Q

(i) – R, (ii) – P, (iii) – S, (iv) – Q

(i) – R, (ii) – S, (iii) – P, (iv) – Q

(i) – R, (ii) – S, (iii) – Q, (iv) – P

Question 39
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Match the given statements with the correct word: Image or shadow

(i) It is formed by intersection of reflected rays.
(ii) It can be straight or inverted.
(iii) It does not provide information such as colour, structure etc.
(iv) It is never inverted.

A
(i) Image, (ii) Image, (iii) Image, (iv) Shadow

B
(i) Image, (ii) Image, (iii) Shadow, (iv) Shadow

C
(i) Image, (ii) Image, (iii) Shadow, (iv) Image

D
(i) Image, (ii) Shadow, (iii) Shadow, (iv) Image

Question 40
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Which of the following statements are true?

1. The zygote develops into an embryo.
2. Stigma contains pollen grains which produce male gametes.
3. The cell which results after fusion of gametes is called a zygote.

A
1 and 3

B
2 and 3

C
1 and 2

D
1, 2 and 3

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Question Analysis

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NSO - Mock Test...

Question 1

Burrows

Shed

Hole

Den

Question 2

3, 2, 1, 4, 5

3, 1, 4, 2, 5

3, 1, 2, 4, 5

3, 1, 2, 5, 4

Question 3

26

27

29

37

Question 4

It is a bad conductor of heat.

It is a good conductor of heat.

The metallic plate has a shiny surface.

None of these

Question 5

The temperature of Raj's room is more than the temperature of Simran's room.

The temperature of Simran's room is more than that of Raj's room.

Both rooms have the same temperature.

Nothing can be said.

Question 6

Translatory Motion

Rectilinear Motion

Oscillatory Motion

Non-periodic Motion

Question 7

Remote

Battery

Spark

Charge

Question 8

Fuse

Switch

Power Plug

Electric Socket

Question 9

Air takes space.

Air can be compressed.

Air exerts pressure.

Air is affected by heat.

Question 10

The eye of cyclone is a high pressure area.

The eye of cyclone is a low pressure area.

The eye of cyclone has a diameter of 5 km to 10 km.

The eye of cyclone has a radius of 5 to 10 km.

Question 11

Algae contain chlorophyll which gives them the green colour.

The main components present in carbohydrates are carbon, hydrogen and oxygen.

Stomata are the tiny pores present on the surface of leaves, which help in exchange of gases.

All of the above

Question 12

Concave lens

Convex lens

Concave mirror

Plane mirror

Question 13

Most liquids that conduct electricity are solutions of acids, bases and salts.

The passage of electric current through a solution causes a chemical effect.

If you pass current through a copper sulphate solution, copper gets deposited on the plate connected to the negative terminal of the battery.

All of the above

Question 14

Calamine solution

Ammonia

Milk of Magnesia

Antacid

Question 15

An acid

A base

A salt

None of these

Question 16

HCl

Calamine

H2O

H₂O

NH₃

NH₃

HNO₃

CH₃COOH