CBSE Class 8 Science Combustion and Flame Assignment Set C

Read and download free pdf of CBSE Class 8 Science Combustion and Flame Assignment Set C. Get printable school Assignments for Class 8 Science. Standard 8 students should practise questions and answers given here for Chapter 6 Combustion And Flame Science in Grade 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 Chapter 6 Combustion And Flame

Class 8 Science students should refer to the following printable assignment in Pdf for Chapter 6 Combustion And Flame in standard 8. This test paper with questions and answers for Grade 8 Science will be very useful for exams and help you to score good marks

Chapter 6 Combustion And Flame Class 8 Science Assignment

 

1. Define Fuel. Give examples of solid, liquid and gaseous fuels.

2. Differentiate between combustible and non-combustible substances with two examples of each kind.

3. Why does a candle stop burning when covered with a glass tumbler ?

4. How is spontaneous combustion different from explosion?

5. Special care should be taken to store kerosene oil. Give reason.

6. Why is L.P.G labeled as inflammable substance?

7. How does water help to extinguish fire?

8. Underline the substances which will produce flame on burning and why?

Charcoal ,molten wax, paper, coal, mustard oil

9. Draw a well labeled diagram of the flame of a candle and answer the following


Questions:

(a) Which zone is luminous and why ?

(b) Why is the innermost zone grey in colour and the coldest zone ?

(c) Which zone is called the zone of complete combustion and why?

10. Calorific value of wood is approx.17000-22000kj/kg. What does it mean?

11. Why is it dangerous to burn coal in a closed room?

12. Write any 4 characteristics of good fuel.

13. Name the gases which lead to formation of acid rain.

14. In an experiment 10 Kg of a fuel produced 200,000 KJ 0f heat . Calculate the calorific value of the fuel.

15. How does CO2 help in fire fighting?

 

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