revision ( ch-8,16,21)

26.11.2015 Revision( Ch-8, 16, 21)

Q1. What are the main components of environment?

Q2. Diffrentiate between weather and climate.

Q3. Name the different ways of sending messages through post offices.

Q4. What are three main factors on which the climate of a place depends?

Q5. How are trees useful to the environment?

Q6. Fill in the blanks:-

a) The fumes released by factories pollutes the environment.

b) The winter season lasts from October to february or march.

c)Hot and dry winds that carry dust and sand are called loo.

d)The farther the place from the Equator the cooler the place is.

e) In olden days, people sent messages through pigeons.

f) Telivison can be easily watched and live programs are shown through satellites.

Chapter 7 - “ The Coastal Plains and Islands”

16.11.2015 Chapter 7 - “ The Coastal Plains and Islands”

Q1. What is the advantage of a long coastline?

Ans1. A long coastline would be advantageous to the country as it can use it to transport large quantities of goods into and out of the country. It also encourages fishing and tourism.

Q2. Why are so many tourists attracted to Goa?

Ans2. Tourists are attracted to Goa because of its beautiful beaches and churches.

Q3. Why are Lakshadweep Islands refered to as 'coral islands'?

Ans3. Many Lakshadweep islands are made up of deposits of the skeltons of a sea animal called CORAL. Such islands are called CORAL ISLANDS.

Q4. How is it that so many people in Puducherry know French?

Ans4. At one time the French ruled Puducherry. So, most of the people speak French.

Chapter 21- “ Saving The Environment”

19.10.2015 Chapter 21- “ Saving The Environment”

WORD TO REMEMBER:-

1. Environment:- Everything that surrounds us, including both living and non-living things.

Q1. What are the main components of the environment?

Ans1. Environment includes both living and non-living things.

NON LIVING COMPONENTS of the environment are land, air, water, light, temperature etc.

LIVING COMPONENTS of the environment are plants, animals, germs and all other living things.

Q2. How are trees useful to environment?

Ans2. a) Trees help to keep the air clean.

b) Trees help absorption of water by the soil, so that ground water levels are maintained.
c)The roots of the trees bind the soil and prevent soil erosion.

Q3. Carrying your own bag when you go shopping helps the environment. How?

Ans3. Carrying our own bag reduces the use of plastic bags by shopkeepers helps in reducing land pollution as platic is a major reason of pollution.

Chapter 16- "Sending Messages"

12.10.15

Chapter 16- “ Sending Messages”

WORDS TO REMEMBER:-

a) COMMUNICATION:- The exchange of thoughts, ideas or information between people.

b) SATELLITE( Human- made ):- An object sent into the space to travel around the Earth to send and recieve information.

QUESTION/ ANSWERS:

Q1. Name the different ways of sending messages through post offices.

Ans1. Different ways to send messages through post offices are:-

a) Ordinary Post to send letters.

b) Money orders to send money.

c)Telegram to send urgent messages.

d)Courier service known as Speedpost top send letters, parcels etc. fast that is within 1 or 2 days.

Q2. What is the advantage of speedpost over ordinary post delivery?

Ans2. Letters sent through speedpost reach any city in India in just a day or two whereas an ordinary post delievery takes several days.

Q3. What do you understand by mass media?

Ans3. The means to communicate or send a message to a large number of people at the same time is called mass communication. Newspapers, radio and telivision are all mediums of mass communication.

Chapter 8 - “ The Climate of our country”

28.9.2015 Chapter 8 - “ The Climate of our country”

WORDS TO REMEMBER:-

1. Equator:- An imaginary line drawn around the middle of the Earth dividing it into two halves.
2. Monsoon:- Winds that bring rain to India.

Question/ Answers:-

Q1. What is the difference between weather and climate?

Ans1. Weather Climate

1. Weather refers to how cold, hot, rainy, windy, or cloudy it is in a place at a particular time.	1. Climate refers to the weather conditions of a large area taken over a long period of time.
2. 'It is a rainy day' means we are talking about weather	2. 'The coastal plains are warm and humid' means we are talking about climate.

Q2. What are three main factors on which the climate of a place depends?

Ans2. The climate of a place mainly depends on the following:-

1. Distance from the eqautor.
2. Altitude of the place.
3. Distance from the sea.

Q3. What kind of weather do we have during summers in the northern plains?

Ans3. In summers, it is hot and dry in almost all parts of India, except the mountains. The sun is very hot, and the days are longer than the nights. Hot drywinds called LOO blow in northern plains. Dust storms are also common in this region.

MAP ACTIVITY ( FA 4 )

1) Stick the political map of India in your new Social Studies copy.
2) This is FA4 map activity ( 5 marks ).
3) Make an index in the new copy.
4) Do not colour your map.
5) Mark only States of India, its capitals and Union Territories. Do not mark neighbouring countries in the map.

revision 2

3.9.2015 Revision

Answer the following questions:-

Q1. Where does river Ganga originate from? Gangotri.

Q2. On which river is Bhakra Nangal Dam built? Satluj.

Q3. Which is the highest waterfall in India? Jog falls.

Q4. Which crop grows best in Black soil? Cotton and Sugarcane.

Q5. Which is the official language of India? Hindi.

Q6. List 3 fundamental rights of citizens of India.

Q7. List 3 fundamental duties of citizens of India.

Q8. What is constitution?

Q9. What are natural resources?

Q10. Which resources once used up can not be renewed? NonRenewable resources.

Q11. What is terai? Area at the foothills of Shiwalik range.

Q12. What are the uses of soil?

Q13. What is a plateau?

Q14. Why are harvest festivals celebrated?

Q15. What are the seven sisters? Name them.

Q16. Why the rivers in southern plateau dry up during summers?

Q17. What does people in Kashmir carry to save themseleves from cold?

Q18. Which is the highest peak of the world?

Q19. In which place does villages come up in deserts?

Q20. Who are nomads?

Q21. From where does Himalayas get its name?

Q22.On which occassions folk dances performed?

Give examples of the following:-

1. mughal architecture:-
2. Rivers in southern plateau:-
3. Himalayan ranges:-
4. Fuels:-
5. Buddhist stupas:-
6. Popular Cities in Rajasthan:-
7. Hill stations:-
8. States in Ganga Basin:-
9. Caves in maharashtra:-
10. Types of Classical music:-
11. Folk dances of Punjab:-