Winds, Storms, and Cyclones Questions and Answers Class 7 Science Part 1 Chapter 8 Assam State Education Board Syllabus 2025-2026 Covered
Natural calamities like winds, storms, and cyclones have significant effects on the environment and human life. This chapter explains how air exerts pressure, how storms form, and how cyclones cause destruction. Below are the important questions and answers from NCERT & SCERT Assam Class 7 Science Chapter 8 - Winds, Storms, and Cyclones, based on the Assam State Education Board syllabus for 2025-2026.
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Join Our WhatsAppIntroduction to Winds, Storms, and Cyclones
Storms are violent disturbances in the atmosphere, often accompanied by strong winds and rain.
Cyclones are large-scale air masses that rotate around a strong center of low pressure, causing heavy rainfall and winds.
Class 7 Science Question Answer – Part I All Chapters
Below are the chapters of Class 7 Science. Click on the chapter name to access the respective question-and-answer content:
1. Fill in the missing word in the blank spaces in the following statements:
(a) Wind is —————— air.
(b) Winds are generated due to —————— heating on the earth.
(c) Near the earth’s surface, __________ air rises up, whereas ___________ air comes down.
(d) Air moves from a region of ——— pressure to a region of ——— pressure.
Ans:
(a) Wind is moving air.
(b) Winds are generated due to uneven heating on the earth.
(c) Near the earth’s surface, warm air rises up, whereas cold air comes down.
(d) Air moves from a region of high air pressure to a region of low air pressure.
2. Suggest two methods to find out wind direction at a given place.
Ans: The two methods to finding out the wind direction at a given place are as follows:
(i) By seeing the direction of dry leaves released in the air.
(ii) By seeing the direction in which it is difficult to ride the bicycle.
3. State two experiences that made you think that air exerts pressure (other than those given in the text).
Ans: (i) When we fill the air in the balloon, it becomes tight, and if we try to fill more air, the balloon will burst which proves air exerts pressure.
(ii) Wind causes curtains, doors and windows to move with the direction of the wind. This demonstrates air exerts pressure.
4. You want to buy a house. Would you like to buy a house having windows but no ventilators? Explain your answer.
Ans: It is not a good idea to buy a house without ventilators because warm air is lighter than cold air hence warm air passes out of your home through ventilators. Accordingly, without ventilators, warm air will not pass out, and the house will remain warm.
5. Explain why holes are made in hanging banners and hoardings.
Ans: Holes in the banners and hoardings help air to pass through them. Hence, banners can withstand the pressure of the air and remains intact.
6. How will you help your neighbours in case a cyclone approaches your village/town ?
Ans:
(i)We can help our neighbours in case of a cyclone approaches by any of the following measures:
(ii) By helping them shift to a safer place.
(iii) By helping them to shift their animals, necessary households and vehicles to a safer place.
(iv) By calling emergency services such as fire stations, police, medical centres etc.
7. What planning is required in advance to deal with the situation created by a cyclone ?
Ans:
(i) We should not ignore the warnings issued by the meteorological department through TV, radio, or newspapers.
(ii) We should make necessary arrangements to shift the essential household goods, domestic animals and vehicles, etc., to safer places.
(iii) Avoid driving on roads through standing water, as floods may have damaged the roads.
(iv) Phone numbers of all emergency services like police, fire brigade, and medical centres should be handy.
(v) Always store drinking water for emergencies.
(vi) Do not touch wet switches and fallen power lines.
(vii)Do not pressurise the rescue force by making undue demands.
(viii) Cooperate and help your neighbours and friends.
8. Which one of the following places is unlikely to be affected by a cyclone?
(i) Chennai
(ii) Mangaluru (Mangalore)
(iii) Amritsar
(iv) Puri
Ans: The answer is (iii) Amritsar because Amritsar is far away from the sea, while the remaining three are coastal areas and are more likely to be hit by a cyclone.
9. Which of the statements given below is correct?
(i) In winter, the winds flow from the land to the ocean.
(ii) In summer, the winds flow from the land towards the ocean.
(iii) A cyclone is formed by a very high-pressure system with very high-speed winds revolving around it.
(iv) The coastline of India is not vulnerable to cyclones.
Ans:
The answer is (i) In winter, the winds flow from the land to the ocean.
Class 7 Science Chapter 8 - Important Questions & Answers
Q1: What causes wind to blow?
Answer: Wind is caused by the uneven heating of the Earth's surface. Air moves from high-pressure areas to low-pressure areas, creating wind.
Q2: How does air exert pressure?
Answer: Air has weight and exerts pressure in all directions. When air moves, it creates areas of high and low pressure, leading to wind formation.
Q3: How are storms formed?
Answer: Storms form when:
The rising warm air creates low pressure, pulling in cooler air.
The movement of air can lead to strong winds, heavy rain, and lightning, forming a storm.
Q4: What is a cyclone? How does it form?
Answer: A cyclone is a large, rotating storm system with strong winds and heavy rain. It forms when:
Cooler air moves in, causing the system to spin.
The Coriolis effect makes the cyclone rotate.
Q5: What are the effects of cyclones?
Answer: Cyclones cause:
Strong winds that damage buildings and trees.
Storm surges that lead to coastal destruction.
Loss of life and property.
Q6: How can we reduce the damage caused by cyclones?
Answer: Damage can be reduced by:
Stronger buildings and infrastructure.
Evacuation plans for affected areas.
Planting trees to reduce wind speed.
FAQs on Winds, Storms, and Cyclones
Q1: Why do cyclones occur more frequently in coastal areas?
Answer: Coastal areas are warmer and have more moisture, which helps in cyclone formation.
Q2: What is the difference between a tornado and a cyclone?
Answer:
Cyclones are large, rotating storms over the ocean.
Q3: How can people stay safe during a cyclone?
Answer: People can stay safe by:
Staying indoors and avoiding open spaces.
Following government alerts and evacuation plans.
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