Sunday, 9 April 2017

Homework for 4 B on 09/04/2017.

English

Find out the synonyms of the following words. Write it in your literature notebook and submit on 10-04-17.

1.   Caressed
2.   Cleaving
3.   Scent

Science

Answer the following questions based on the discussions in class, in your science note book. Submit the same on Monday (10/4/17).

Choose the correct option.
1. If a ball is thrown up, it always comes down. Why?
It runs because of push
It is because of gravity
It is due to less energy
2. One needs to be careful about slipping while walking on a polished floor
     but not on an unpolished one. Why?
Greater friction on a polished surface
Lesser friction on a polished surface
Same level of friction
3. On which surface will a toy sledge travel the least distance?
Carpet
Polished wood
Ice
4. Which of the following statements is true?
Friction is a force that occurs only between solids
Friction is a force that occurs on a rough surface

5. Friction occurs when
The two surfaces are innocent
The two surfaces are not in contact
The two surfaces are in contact

6. A boy dropped a bottle and it fell crashing to the ground. It is due to
Frictional force
Gravitational force
Muscular force

S.St

Continue these notes in your S.St. notebook and submit it on 10/4/2017.

Q.3. What is climate change? What are the causes of climatic changes?

A. Climate change represents a change in long-term weather conditions.
       The causes of climatic changes are: -
1.   Deforestation
2.   Global warming
3.   Increased pollution
4.   Overuse of water
5.   Illegal human activities

Q.4. What are the impacts of climatic changes?

A. When climatic changes occur, it may lead to: -       
1.   Identity loss of the area
2.   Change in lifestyle of people residing in that area
3.   Various health problems
4.   Scarcity of natural resources