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CBSE Class 8 Science Combustion and Flame Worksheets

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Last updated date: 29th Mar 2024
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MVSAT 2024

CBSE Class 8 Science Combustion and Flame Worksheets with Answers - Chapter 6 - PDF

Class 8 Science is quite interesting and covers a wide range of topics, right from crop production to pollution. However, as the exam dates come closer, students start to get anxious about their preparation, especially for subjects like Science. Regular revision and practice are required to improve. That's why practicing the worksheets made by subject experts at Vedantu can prove to be a huge help. 

CBSE Class 8 Science Combustion and Flame Worksheets with Answers for Chapter 6 in PDF format to download prepared by expert Science teachers from the latest edition of CBSE(NCERT) books. Register Online for Class 8 Science tuition on Vedantu to score more marks in your examination. Vedantu is a platform that provides free CBSE Solutions (NCERT) and other study materials for students. Maths Students who are looking for better solutions can download Class 8 Maths NCERT Solutions to help you to revise the complete syllabus and score more marks in your examinations.

In case students want to solve more questions, they can also check out CBSE Vedantu Sample Paper for Class 8 Science. Practicing papers help students to learn proper and efficient time management. It often happens that despite knowing all the answers, students are unable to complete their papers on time. Thus, time management skills are also essential for the main examination. 

Class 8 Science CBSE Syllabus

Before moving on to solve papers, students must first be well-acquainted with the syllabus of the subject. We have compiled a list of all the chapters in the Class 8 CBSE NCERT textbook for you. They are:

  • Chapter 1: Crop Production And Management

  • Chapter 2: Microorganism Friend Foe

  • Chapter 3 Synthetic Fibres And Plastics

  • Chapter 4: Materials Metals And Non Metals

  • Chapter 5: Coal And Petroleum

  • Chapter 7: Conservation Of Plants And Animals

  • Chapter 8: Cell Structure And Functions

  • Chapter 9: Reproduction In Animals

  • Chapter 10: Reaching The Age Of Adolescence

  • Chapter 11: Force And Pressure

  • Chapter 12: Friction

  • Chapter 13: Sound

  • Chapter 14: Chemical Effects Of Electric Current

  • Chapter 15: Some Natural Phenomena

  • Chapter 16: Light

  • Chapter 17: Stars And The Solar System

  • Chapter 18: Pollution Air Water

FAQs on CBSE Class 8 Science Combustion and Flame Worksheets

1. What is the ignition temperature?

The lowest temperature at which a substance can catch fire is termed its ignition temperature. Studies demonstrate that a combustible substance cannot burn in the air as long as its temperature is lower than its ignition temperature. You might have seen cooking oil catching fire when a frying pan is kept for long on a lit stove. Wood and kerosene can be taken as examples. Kerosene oil catches fire on being heated while wood does not. This clearly shows that the ignition temperature of the wood is higher than that of kerosene. 

2. Can you describe the various zones of a flame?

Let us discuss the various zones of a flame. A flame is divided into 3 zones. These are:

  • The innermost is the dark zone which comprises the unburnt vapors of wax.

  • The middle or yellow zone is where incomplete combustion takes place. It is also known as the luminous zone of a flame.

  • The outermost zone of the flame is quite thin and blue. Complete combustion takes place here which is why it is known as the non-luminous zone.

3. How will Vedantu’s worksheets help me with Class 8 Science?

Vedantu is the most trusted academic website in India. Lakhs of students make use of Vedantu every day to find answers to their problems and clarify their doubts. A team of expert teachers makes the worksheets present on Vedantu’s website after analysis of past year papers. You should set a timer when you are working on the worksheets, this will help you prepare for the day of the final examination. Remember to solve the questions in the worksheet with concentration to get the maximum benefit. These solutions are available free of cost at Vedantu's website and mobile app.

4. What is acid rain?

The burning of fossil fuels like coal and diesel releases many toxic gases like sulphur dioxide and other nitrogen oxides. These gases are extremely suffocating and corrosive. Petrol engines particularly emit high amounts of gaseous oxides of nitrogen. These oxides of sulphur and nitrogen dissolve in rainwater after their formation to form acids. Such rain is termed acid rain and it is very detrimental to crops, buildings, and soil. Vegetation can be destroyed due to acid rain. 

5. Which gas acts as a fire extinguisher?

Carbon dioxide gas acts as a fire extinguisher. Carbon dioxide is heavier than oxygen and covers the fire like a blanket. As the fuel is no longer in contact with the fuel now, the fire dies down. This is why carbon dioxide is used to control fires in which electrical equipment and inflammable materials are involved. Water can be used only when things like paper or wood are on fire. CO2 is generally stored under high pressure in liquid form inside cylinders.