CBSE Class 8 Science Chapter Wise Question Bank Set E

Read and download free pdf of CBSE Class 8 Science Chapter Wise Question Bank Set E. Get printable school Assignments for Class 8 Science. Class 8 students should practise questions and answers given here for All topics Science in Class 8 which will help them to strengthen their understanding of all important topics. Students should also download free pdf of Printable Worksheets for Class 8 Science prepared as per the latest books and syllabus issued by NCERT, CBSE, KVS and do problems daily to score better marks in tests and examinations

Assignment for Class 8 Science All topics

Class 8 Science students should refer to the following printable assignment in Pdf for All topics in Class 8. This test paper with questions and answers for Class 8 Science will be very useful for exams and help you to score good marks

All topics Class 8 Science Assignment

1. Fill in the blanks:

1. The two main crop seasons are __________season and _________ season.

2. __________ crops are grown during the rainy season. (June to September)

3. ___________ crops are grown during the winter season.(October to March)

4. Paddy is a ___________ crop.

5. Wheat and mustard are ______________ crops.

6. _____________ is a crop that is grown in standing water.

7. _____________________ is the first step before growing a crop.

8. ___________ and ___________organisms are called the friends of farmers which help in loosening the soil and adding humus to the soil.

9. ______________ and ____________ are the tools used in ploughing or tilling.

10. Dry soil has to be ______________ before ploughing.

11. _______ and _________tool can be used simultaneously for weeding and loosening the soil.

12. A tractor driven implement used for ploughing a field is called __________

13. Soil can be replenished through methods like ______________ and ______

14. Transplantation of plantlets into the field is done in the cultivation of the crops like ______________________.

15. The practice of leaving the field uncultivated is called __________________

16. _______________ is an organic substance obtained from the decomposition of plant or animal waste.

17. _____________ provides a lot of humus to soil.

18. ________________ are the chemical substances rich in particular nutrients.

19. _________system is a type of irrigation more useful on the uneven land and sandy soil.

20. Freshly harvested grains are sundried to remove ____________________.

21. Large scale storage of grains is done in ____________, _____________and __________.


I. Name the following:

1. The plant nutrients found in fertilizers: ______________________________

2. Any three sources of irrigation : ___________________________________

3. The nitrogen fixing bacteria found in the root nodules of leguminous plants: _______

4. The method of separating the grains from the chaff: __________________

5. The type of irrigation in which wastage of water is less: ________________

6. An example of weedicide: ________________________

7. Two weeding tools : ____________________________________________

8. Any two harvest festivals of India: _________________________________

9. Any two traditional methods of irrigation: ___________________________

10. A machine used for harvesting as well as threshing: ___________________

11. The science dealing with the study of food, shelter and health care of domestic animals:



I. Fill in the blanks:

1. The pathogens are ____________ causing organisms.

2. The antibiotic first discovered By Alexander Fleming is called ___________.

3. _____________mosquito acts as the carrier of malaria causing parasite.

4. The most commonly used algae as fertilizers is ___________________.

5. Yeast cells produce alcohol and carbon dioxide by the process called ________

6. ________________ is the carrier of dengue virus.


II. Name the following:

1. Two single celled micro-organisms: ________________________________

2. Two multicellular micro-organisms: ________________________________

3. Two diseases caused by virus: ____________________________________

4. Two diseases caused by protozoa: ________________________________

5. Some diseases caused by bacteria: _________________________________

6. Two groups of micro-organisms that live in colonies: __________________

7. The micro-organism which promote curd formation: __________________

8. Two antibiotics: __________

9. Two communicable diseases: _____________

10. Two chemical preservatives: __________

11. The most common vaccine programme: ____________

12. The scientist who discovered fermentation: __________

III. Answer in short:

1. What is fermentation?

2. Who discovered the antibiotics?

3. Who discovered the vaccine for small pox?

4. How do pathogens enter in our body?

5. What are preservatives?

6. Which micro-organism is called as the nitrogen fixing bacteria?



I. Fill in the blanks:

1. Many small units combine to form a large single unit called as ___________

2. ___________ fibre was prepared from coal, water and air.

3. All synthetic fibres are prepared using raw materials of petroleum origin called as _______.

4. ___________ is a familiar form of polyester used for making bottles, utensils, wires, and many useful products.

5. ____________ are the chemicals which give fruity smell.

6. Polythene is an example of __________

7. Plastics are _____________ conductors of electricity.

8. _____________ is the plastic used as non-stick coating on cookwares.

9. _____________ material is used to make rayon.

II. Name the following:

1. The artificial silk fibre: ____________

2. The first fully synthetic fibre: ______________

3. Any two thermoplastics: ___________

4. Any two thermosetting plastics: _____________

5. The synthetic wool: ___________

6. Any two items made from nylon: ____________



I. Answer the following:

1. Which property of metals make them useful as wires?

2. What is the green material formed on copper when it is exposed to moist air for a long time?

3. Which property of the metals make them useful as ringing bells?

4. Identify the most reactive and the least reactive metal amongst the following: Aluminium, Potassium, Copper, Iron, Zinc, Gold.

5. What happens when iron is put into copper sulphate solution?

6. State the nature of non-metallic oxides.

7. State the nature of metallic oxides.

8. What happens when non-metals react with water?

II. Name the following:

1. The metal which exists in liquid state: __________

2. The hardest naturally occurring substance:____________

3. The non-metal which is a good conductor of electricity: ____________

4. Two soft metals which can be cut with knife: _____________

5. Any three non-metals: ___________

6. A non-metal used in water purification:____________

7. The gas produced on reaction of metals with bases: _______



I. Answer the following in short:

1. What is petroleum?

2. Define the term refining

3. What do you mean by PCRA?

II. Name the following:

1. The gas used for street lightning in London in 1810: ___________

2. The fuel used in heavy vehicles: _____________

3. The fuel used in light vehicles: _____________

4. The gas which always collects above petroleum: _____________

5. The natural resource from which petrol and diesel are obtained: _________

III.Choose the correct answer:

1.Which of the following is not a fossil fuel?
(i) Natural gas
(ii) Wood
(iii) Coal.
(iv) Petrol

2. Which of the following is the fuel used in jet aircrafts?
(i) Petrol
(ii) Kerosene oil
(iii) Diesel
(iv) CNG

3. World’s first oil was drilled in:
(i) Assam
(ii) Saudi Arabia
(iii) Pennsylvania
(iv) Mumbai High

4. Naphthalene balls are obtained from :

5. Which gas is produced mainly on heating of coal strongly?
(i) Carbon mono-oxide
(ii) Methane gas
(iii) Carbon dioxide



I. Fill in the blanks:

1. A good fuel should have ___________ignition temperature. (high/low)

2. LPG, petrol and alcohol are __________ substances.

3. The hottest region of a candle flame is called __________.

4. Incomplete combustion of fuels releases poisonous ______________ gas in the air.

5. Increased percentage of carbon-dioxide in the air has been link to ______________.

6. ____________ form of fuels have the highest calorific value. (Solid/Liquid/Gaseous)

7. ______________ zone of a candle flame is the coolest region.

8. The head of safety match nowadays contains ____________ and __________.

9. Burning of fossil fuels release gaseous oxides of ___________, _____________ and ____________in the air.

10. Combustible substances are also called ____________.

11. Unburnt carbon particles in the air are dangerous pollutants causing ________ diseases.

12. ___________ combustion is responsible for outbreak of disastrous fires in coal mines. (Spontaneous/rapid)

II.Name the following:

1. The fuel with highest calorific value :___________

2. The fuel with lowest calorific value:____________

3. Two air pollutants related to acid rains:__________

4. Two inflammable substances:____________

5. The gas which helps in combustion:______________

6. Two common fire extinguishers:__________

7. Two chemicals which can be used as alternative source of CO2 for putting off fires:_____

III.Define the following:

(a) Combustion b) Calorific value c) Ignition temperature d) Inflammable substances

IV.Answer the following questions:

1. State four characteristics of a good fuel.

2. Burning of a candle produces flame while burning of charcoal doesnot. Give reason.

3. State two adverse effects of global warming.



I. Fill in the blanks:

1. Procuring land for cultivation leads to __________

2. Some natural causes of deforestation are _____________ and __________

3. __________ are the areas meant for conservation of biodiversity.

4. Biosphere reserve may also include within it other protected areas like __________ etc.

5. The plants and animals found in a particular area are termed as _________ and _________.

6. ____________ species are those species of plants and animals found exclusively in an area.

7. An ____________ is made of all plants, animals and micro-organisms in an area along with the non-living components such as climate, soil, river etc.

8. Red data book is the source book which keeps a record of all the __________ plants & animals.

9. Species which have disappeared from this earth are called __________ species.

10. _________ refers to the variety of plants ,animals and micro-organisms found in an area.

11. Members of a ___________ have common characteristics

II. Define the following:
a) Endemic species
b) Endangered species
c) Extinct species
d) Migration
e) Biodiversity

Chapter 01 Crop Production and Management
CBSE Class 8 Science Crop Production And Management Assignment
Chapter 02 Microorganisms Friend or Foe
CBSE Class 8 Science Micro Organisms Friends and Foe Assignment
Chapter 03 Synthetic Fibres and Plastics
CBSE Class 8 Science Synthetic Fibers And Plastics Assignment
Chapter 04 Materials Metals and Non-Metals
CBSE Class 8 Science Materials Metals And Non Metals Assignment
Chapter 07 Conservation of Plants and Animals
CBSE Class 8 Science Conservation Of Plants And Animals Assignment
Chapter 08 Cell Structure and Functions
CBSE Class 8 Science Cell Structure and Functions Assignment
Chapter 09 Reproduction in Animals
CBSE Class 8 Science Reproduction in Animals Assignment
Chapter 10 Reaching the Age of Adolescence
CBSE Class 8 Science Reaching the age of Adolescence Assignment
Chapter 14 Chemical Effects of Electric Current
CBSE Class 8 Science Chemical Effects of Electric Current Assignment
Chapter 17 Stars and the Solar System
CBSE Class 8 Science Stars and the Solar System Assignment
Chapter 18 Pollution of Air and Water
CBSE Class 8 Science Pollution of Air and Water Assignment
Class 8 Science Revision Assignments
CBSE Class 8 Science Revision Assignment

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CBSE Class 8 Science All topics Assignment

We hope you liked the above assignment for All topics which has been designed as per the latest syllabus for Class 8 Science released by CBSE. Students of Class 8 should download and practice the above Assignments for Class 8 Science regularly. We have provided all types of questions like MCQs, short answer questions, objective questions and long answer questions in the Class 8 Science practice sheet in Pdf. All questions have been designed for Science by looking into the pattern of problems asked in previous year examinations. 

Assignment for Science CBSE Class 8 All topics

Our team of expert teachers have referred to NCERT book for Class 8 Science to design the Science Class 8 Assignments. If you practice at least one test paper daily, you will get higher marks in Class 8 exams this year. Daily practice of Science course notes and related study material will help you to clear all your doubts and have stronger understanding of all concepts. You can download all Revision notes for Class 8 Science also from absolutely free of cost.

All topics Assignment Science CBSE Class 8

All questions and their answers for the assignment given above for Class 8 Science have been developed as per the latest curriculum and books issued for the current academic year. The students of Class 8 can rest assured that the best teachers have designed the questions of Science so that you are able to revise the entire syllabus if you do the assignments. Lot of MCQ questions for Class 8 Science have also been given in the worksheets and assignments for regular use. All study material for Class 8 Science students have been given on studiestoday.

All topics Assignment CBSE Class 8 Science

Regular assignment practice helps to get a more comprehensive understanding of All topics concepts. Assignments play a crucial role in understanding All topics in CBSE Class 8. Students can download all the assignments of the same chapter in Class 8 Science in Pdf format. You can print them or read them online on your computer or mobile.

CBSE Science Class 8 All topics Assignment

CBSE Class 8 Science latest books have been used for coming up with the latest questions and solutions for the above assignment. If you have revised all concepts relating to All topics then you should attempt all questions given in the test sheets above. We have also provided lot of Worksheets for Class 8 Science which you can use to further make your self stronger in Science

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The assignments for All topics Class 8 Science for have been made based on which syllabus

The All topics Class 8 Science Assignments have been designed based on latest CBSE syllabus for Class 8 Science issued for the current academic year

Can I download and print these printable assignments for Science All topics Class 8

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How many topics are covered in All topics Science assignments for Class 8

All topics given in All topics Science Class 8 Book for the current academic year have been covered in the given assignment

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Are these assignments available for all chapters in Class 8 Science

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