Thursday, August 16, 2007

Mahesh Technologies

VII Class


Note : Interested Students or teachers may send their answers to

batchumaheswarao@gmail.com

We will publish your name , address and photo if you are interested

General Science

Long Answer Questions



What are the uses of electron microscope?


Write about the discoveries of Louis Pasteur.


Explain how you will find out the distance of an object at a point in your class room using triangulation method?


Draw a neat sketch of cistern barometer or mercury Barometer and explain its construction.


Mention the factors and harm full effects of air pollution.


What are the controlling methods for air pollution?


Draw a neat sketch of the apparatus showing the electrolysis of water. Explain the Clark’s method of removal of temporary hardness in water. Explain how the exange of ions result in the removal of permanent hardness.


Explain the the stages of purifying water.


What steps are to be taken for preventing of water pollution?


Explain how bricks and tiles are made. How is cement prepared? Give two uses of cement.


What precautions do you take to protect your clothes from dust and insects?


What precautions are to be taken to remove strains from clothes?


What information can a formula furnish?


What is meant by a chemical change?Explain with an example.


What is meant by a physical change? Explain with an example.


What are the differences between physical change and chemical change?


Mention the different types of chemical changes giving an example for each type.


Explain with a diagram how oxygen is prepared in the laboratory.


Explain the method of preparation of carbon dioxide in the laboratory.


Explain the method of preparation of hydrogen in the laboratory.


Write the difference between the potential energy and kinetic energy.


GIVE THE REASIONS (a) A metal cylinder and a wooden cylinder of same volume are placed at a certain height. The metal cylinder posses more potential energy.(b) A driver of a vehicle going up a hill tries to drive it faster .(c) A marble is rolling down on inclined plane. Describe the different types of energy it posses at different points.


How do you prove experimentally that solids expand when they are heated?


How can you say liquids expand on heating?


How can you say gasses expand on heating?


How can you demonstrate the process of convection of heat in your laboratory?


How can you prove that water and glass are bad conductors of heat?


Define radiation of heat. How can you say that black objects absorb heat fast?


How does a hurricane lamp give us light?


Describe the construction of electric bulb. Explain how a lunar eclipse occurs? Explain how a solar eclipse occurs?


How are shadows formed?


What are the differences between umbra and penumbra?


How can you prove the laws of reflection?


What is meant by reflection?


Write three laws of reflection? List out some applications of the phenomenon of reflection of light.


Describe how an image is formed in a plane mirror?


List the characteristics of light rays.


Explain why many images are formed when two mirrors are placed at an angle.


Describe the construction and function of a periscope.


How can you show that the source of sound vibrates?


Prove with an experiment that sound requires a medium to propagates?


Describe an experiment to show propagation of sound in water.


Prove that sound is reflected by surfaces?


Write the damaging effects of sound pollution on our body?


What steps can we take to reduce sound pollution?


Write about the construction of a voltaic cell .What is its defects? How are they reflected?


Describe the construction of dry cell. How are bulbs connected in series? What is its defect?


Write about the construction of a electric heater?


Through what activity can you show that electricity can produce magnetic effect?


By what experiment can you prove that electricity has chemical effects?


Draw the diagram of a rocket. Write how it works.


What were the experiments made by scientists before man landed on the moon?


What are the uses of space travel? What are the functions of the circulatory system?


What is blood? Describe the various components of blood.


Describe the white blood corpuscles and their function.


Describe the Red blood corpuscles What are blood platelets?What is their function?


Describe the structure of heart?


Mention the differences between arteries and veins.


What are the functions of kidneys?


Describe the nephron.


What is urine and what are the various various substances present in it?


What are the functions of skin? Describe the glands present in the skin.


Describe any three common skin diseaseas.


What are the steps you take to keep your body clean?


What is sun stroke? What is the first aid given to the person affected?


Describe the brain. What re the functions of brain.


Describe a neuron.


Describe the accessory parts of the flower.


Describe the structure of stamen in Datura.


What is pollination? What are the different types of pollination?


How does pollination takes place in vallisnaria?


Explain briefly the pollination by insects.


Differentiate between cutting and layering.


Describe how layering is done in jasmine.


Explain the roles of scion and stock in grafting.


Explain what you understand by “Alternation of Generation” in non-flowering plants.


Explain the gametophyte stage of mass plant.


Explain the saprophytic of fern plant.


Describe the stages in the development of the egg of butterfly.


Describe the binary fission in paramecium.


Explain the process of budding in hydra.


What is regeneration? Explain the process in the earth worm.

Describe the structure of spermatozoa.

Describe the female reproductive system of a bird.

Describe the pupa of a mosquito.

How do you prevent the spread of diseases caused by mosquitoes?

What are the changes that take place during metamorphosis of tadpole?

What are the disadvantages if population increases?

What are the disadvantages of destruction of plants?

Short Questions and Blanks will be published soon

Social Studies


I. Essay type ( HISTORY)


1. Explain the greatness of Rastrakutas?

2. Briefly explain the Chola Administration?

3. Write about the land revenue system of Akbar and Shershah?

4. Write about Sivagi’s Administration?

5. To what extend was Aurangzeb responsible for the down fall of Mughal Empire?

6. What are the moment of evoild during Mughal period?

Short type questions (History)

1. Write a note on trade guilds?

2. Mention the cause of the fall of Delhi Sultanate?

3. What is Iqta system ?

4. Write a note on Sufis?

5. What is Bhakti moment and its effects?

6. Describe the revolts or effects Mohd. Ghazni’s invasion?

7. What was the role of the temple during Medieval period?

8. What as Bhuvana Vijayam ?

Essay type Civics

1. State the procedure for the passing of a bill in to an act?

2. State the powers of Lok Shaba?

3. What are Lok Adalat and consumer forum?

4. What is the role played by the public service commission ?

5. Powers of Supreme Court?

6. What are the parts of a road which part of the road should be used by pedestrian?

Civics Short.

1. What is meant by unity in diversity.

2. What is meant by secularism

3. What is Supreme court?

4. How is constitution framed?

5. Why is the lower house powerful than upper house?

6. What is draft constitution?

7. Who appoints the Judge of High Court?

8. Mention duties of police department?

9. What is Zebra crossing?

10. What are traffic offences?

11. Explain briefly the statement all are equal before the judicial?

12. What are the parts of roads?

Economic Essay questions

1. Explain population growth and population characteristics of AP.

2. Explain the regional variation in population composition of AP?

3. Mention the problem faced in the economic development of the state?

4. Mention the advantages of forest?

5. Describe the constitutions of different sector of state?

6. In which year social forestry started ? What are its objectives?

Economic short questions


1. List out the tertiary sector activities?

2. What is the meaning of economic development and economic growth?

3. What is meant by land?

4. Explain population growth of AP

5. Need for social forestry?

6. List out the activities of service sector?

7. Important rives and lakes of AP

8. Important mineral of state?


Geography Essay questions

1. What are the physical division of North America?

2. Explain the important North America

3. Why has Japan become an important industrial region?

4. Describe the agriculture practice of Asia?

5. Why has Asia grate variation in climate?

6. What are the physical divisions of South America.

7. What are the important industrial in Asia?

8. What are the factors favorable for industrialization in North America?

9. What are the important types of winds? Explain?

Geography short questions

1. What is isolation?

2. What are the physical divisions of Asia.

3. How are Ocean current caused?

4. What are the grate lake of North America.

5. What is Tundra?

6. Name the three important races in S. America.

7. What is prairies ?

8. What is humidity?

9. What are the boundaries of Asia?

10. Why is Vishakapatnam cooler than Guntur?

11. What is tide?

12. What are the advantages of Panama Canal?

13. Why do cloths dry quickly on sunny day?

14. What is Hydrosphere?

15. Important rivers of South America.