by: Monu SirPosted on: July 23, 2026July 23, 2026 Class 8 Science Quiz in Hindi: MCQ, Fill in the Blanks & True/False Complete Science & General Knowledge Quiz Complete Science & GK Quiz Test your knowledge! Select the right options and type your answers below. Multiple Choice Questions (MCQs) 1. From which microbes we obtain penicillin? a. Fungi b. Algae c. Virus d. Bacteria 2. Virus exhibits the characteristics of both living as well as non-living beings. a. Bacteria b. Protozoa c. Virus d. Algae 3. Bacterium responsible for curdling of milk is called: a. acidobacillus b. lactobacillus c. both a and b d. none of these 4. Fungus that grows on the bread is called: a. mushroom b. mould c. spirogyra d. yeast 5. Louis Pasteur discovered fermentation. a. Edward Jenner b. Louis Pasteur c. Alexander Fleming d. Thomas Alva Edison 6. Edward Jenner discovered the vaccine for smallpox. a. Edward Jenner b. Louis Pasteur c. Alexander Fleming d. Thomas Alva Edison 7. Which of the following is not a combustible substance? a. Wood b. Diesel c. Coal d. Stone 8. Diesel is a secondary fuel. a. Diesel b. Wood c. Coal d. None of these 9. Which zone of a flame has the least temperature? a. Non-luminous b. Luminous c. Dark d. Blue 10. Oxygen is a supporter of combustion. a. Carbon b. Hydrogen c. Oxygen d. Carbon monoxide 11. Which of the following types of fuel burn/s completely? a. Solid b. Liquid c. Gaseous d. Both a. and c. Fill in the Blanks 1. Microorganisms can be seen only with the help of a . (Answer: microscope) 2. Bacillus bacteria are shaped. (Answer: rod) 3. Protozoa have structures that allow them to move from place to place. (Answer: locomotory) 4. Cholera, typhoid, polio and jaundice spread through food and water. (Answer: contaminated) 5. Anthrax is an animal disease caused by . (Answer: Bacteria) 6. present in air supports combustion. (Answer: Oxygen) 7. Foam fire extinguisher releases a foam of that surrounds the burning substance and cuts off its air supply. (Answer: CO2) 8. Inflammable substances have very ignition temperature. (Answer: low) 9. zone is the outermost zone of a candle flame. (Answer: non-luminous) 10. A good fuel has ignition temperature. (Answer: high) 11. The sage said, ‘this is a gift for a king’. (Answer: future) 12. The sage handed him a piece of . (Answer: string) 13. The fourth doll is the kind of person. (Answer: best) 14. The prince repeated the . (Answer: process) 15. is Gold. (Answer: Silence) True or False 1. All combustible substance liberate heat and light on burning. True False 2. Spontaneous combustion starts on its own in the given condition. True False 3. Insufficient supply of oxygen leads to complete combustion. True False 4. The luminous zone of candle flame appears yellow. True False 5. The rate of combustion of liquid and gaseous fuels can be controlled. True False 6. A sage presented a prince with a set of three small dolls. True False 7. The prince passed the piece of string through each doll. True False 8. When the string was put into the ear of the first doll, it came out from its mouth. True False Submit Quiz & Check Score
2. Virus exhibits the characteristics of both living as well as non-living beings. a. Bacteria b. Protozoa c. Virus d. Algae
3. Bacterium responsible for curdling of milk is called: a. acidobacillus b. lactobacillus c. both a and b d. none of these
5. Louis Pasteur discovered fermentation. a. Edward Jenner b. Louis Pasteur c. Alexander Fleming d. Thomas Alva Edison
6. Edward Jenner discovered the vaccine for smallpox. a. Edward Jenner b. Louis Pasteur c. Alexander Fleming d. Thomas Alva Edison
11. Which of the following types of fuel burn/s completely? a. Solid b. Liquid c. Gaseous d. Both a. and c.
7. Foam fire extinguisher releases a foam of that surrounds the burning substance and cuts off its air supply. (Answer: CO2)
