class 6 sst geog 2016

EARTH AND THE SOLAR SYSTEM

B1. A group of stars which forms a definite pattern is called a constellation.

2. Millions of stars together form a group called a galaxy. Our sun belongs to the galaxy :- Milky way .
3. The moon takes 27 days and 8 hours to go round the earth once.
4. An object designed by man to revolve round the earth or any other heavenly body is called an artificial satellite . Eg. INSAT 1.
5. The small celestial bodies that revovle around the sun , which are between the orbits of Mars and Jupiter are called asteroids or minor planets.

C1. The two stars at the head of the Big Dipper of the constellation Great Bear always point towards the pole star.They help navigators to find out the north direction.

2.A faint band of light in the sky is called the Milky Way . It is a band of stars in our galaxy. The sun is a part of this galaxy.

3.Planet Venus is the brightest planet. Mars looks red and Saturn has rings around it.

4. When meteorids enter the earth's atmosphere they start burning and cause a flash of light as they fall. We call them shooting stars or meteors.

D1. The Solar system consists of the sun, the eight planets , the moons, and other celestial bodies that move around the sun.Besides there are dwarf planets ,asteroids, meteoroids also move round the sun.

2. The planets have two types of motions_ rotation and revolution.
   Rotation:- Each planet spins or rotates on its axis. A day on a planet is the time taken by it to complete one rotation.eg. The earth takes 23 hours 56 minutes to complete one rotation.
   Revolution:- All the planets move round the sun on its orbit.
   3. The earth is the only planet which has life on it. The factors that support it are:-Moderate temperature, Water in liquid form and favourable atmosphere.

E2. Neptune is the coldest planet because it is the farthest planet from the sun.

CLASS 4 SST

Ans1.Sea water cannot be used for drinking or irrigation as it contains salt.

Ans 2. Rivers are full of water during the monsoon months , so very often there are floods during these months . The extra water simply flows into the sea. On the other hand , many rivers dry up during the hot summer months causing shortage of water.

4. What is Hydroelectricity?
   Electricity generated from the force of water in a dam is called hydroelectricity.

CLASS 4 SST

THE COASTAL PLAINS AND ISLANDS

Ans 1. A long coastline is advantageous to the country as it can use it to transport large quantities of goods into and out of the country.

Ans 3. Tourists are attracted to Goa because of its beautiful beaches and churches.

Ans 4. Many of the Lakshadweep islands are made up of corals, which are the deposits of skeletons of dead animals. That is why they are called coral islands.

Ans. 5. At one time the French ruled Puducherry. So most of the people speak French.

cLASS 4 sOCIAL sTUDIES

OUR Mineral Wealth

Q3.

Ans-- Iron and Steel Plants__ Jamshedpur and Bhillai.

Petroleum Refineries___ Assam and Gujarat.

Q5.

Ans. COAL-- Coal is mainly found in Jharkhand, Madhya Pradesh, Chattisgarh and West Bengal. It is an important fuel and source of energy. It is used to generate electricity, to run factories and as a domestic fuel.

Petroleum____ It is mainly found in Assam , Gujarat and Bombay High.

It is an important source of energy .

We get fuels like petrol , diesel, kerosene and cooking gas from petroleum.

We also get lubricants, plastics and cosmetics from it.

Q6

ans. Our mineral resources can be over very soon. So they need to be used carefully and not wasted.

CLASS 4 SOCIAL STUDIES REVISION

REVISION

SOCIAL STUDIES

1. Write true or false
   i. The Eastern Ghats pass through West Bengal , Odisha, Andhra Pradesh and Tamil Nadu.
   ii. The Andaman Nicobar islands are located in the Arabian Sea.
   iii. The famous Amul dairy is located in Karnataka.
   iv. Kathakali is the traditional dance of Kerala.
   v. The Rath Yatra takes place in Vishakapatnam.
   II. Give two names
   i.Ports on the Eastern Coast.
   ii. Industries of Gujarat
   iii. Ports on the Western Coast
   III. STATE CAPITAL
   i .Gujarat
   ii. Maharashtra
   iii. Goa
   iv. Karnataka
   v. Kerala
   vi. Odisha
   vii. Tamil Nadu
   viii. Andhra Pradesh

CLASS 6 ENGLISH EUREKA

EUREKA

Ans 1. Hiero was the king of Syracuse. He wanted the biggest crown in the world.

Ans 2. He called the goldsmith to fashion a crown that would make every other king want to possess it. For this he gave ten pounds of pure gold to the goldsmith.

Ans3. The king instructed the goldsmith to put every grain of gold and not to use any other metal with it .

Ans 4. Archimedes was a very wise man in the king's court . Though he found the workmanship of the crown exquisite, he was suspicious of the quality of the gold.It was a brilliant yellow . It did not have the same rich colour as the lump of gold given to him by the king.

Ans 5.The challange before him was to invent a method to measure the purity of the gold used to make the crown without causing the crown any damage.

Ans 6. One morning when Archimedes stepped into the bath tub a quantity of water flowed out of it . He got the idea that if he put Hiero's crown into it , it would also displace a bulk of water. Gold is much heavier than any other metal such as silver or brass. So if the king's crown was of pure gold it would displace less water. If the crown was not of pure gold it would displace a larger bulk. So it was proved that the crown was not pure gold when it was tested.

Ans 7. Eureka means , I have found it. Archimedes suddenly hit upon the idea of testing the purity of gold. In this manner he helped the entire world with his invention. Hence these words have become famous.

CLASS 6 ENGLISH LITTLE BOY BLUE

LITTLE BOY BLUE

1. The toy dog and the toy soldier belonged to the Little Boy Blue. They were rusted and covered with dust which indicates that they had been standing at the same place for a long time.
2. The boy had not touched the toys or smiled at them for a long time because he had died when he was still a child.
3. The boy probably could have been two years of age when he kissed and put the toys in their place. The words which tells us this are:- 'toddling ' , trundle bed and little boy blue.

A2. 1. The little boy said these words to his toys.

2. It is actually not logical to talk to toys . But the boy plays with his toys as if they are his friends.
3. In reality toys cannot hear or respond. But as the boy regards them as his friends he expects them to hear and understand him.

2.a) Angel song here means a song sung by a messenger of God which awoke the boy in the other world, that is heaven.

b) These lines are talking about the untimely death of the boy.