This quiz works best with JavaScript enabled. Home > Science > General Science – Quiz 126 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books General Science Quiz 126 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following changes cannot be reversed? A) Milk to paneer. B) Cold milk to hot milk. C) Yam to knitted sweater. D) Wet clothes to dry clothes. Show Answer Correct Answer: A) Milk to paneer. 2. Heating water is an example of..... A) Sound energy. B) Thermal energy. C) Light energy. D) None of above. Show Answer Correct Answer: B) Thermal energy. 3. Breaks down rocks by changing their compositions into new material A) Mechanical weathering. B) Chemical weathering. Show Answer Correct Answer: B) Chemical weathering. 4. What process produces energy from the plant? A) Photosynthesis. B) Fermentation. C) Cellular Respiration. D) Transpiration. Show Answer Correct Answer: C) Cellular Respiration. 5. The hardest substance available on earth is A) Platinum. B) Diamond. C) Iron. D) Gold. Show Answer Correct Answer: B) Diamond. 6. A description of an object made up of two or more parts and its purpose is to show the relationship of the various parts, is what kind of a drawing is it? A) Installation Drawing. B) Detail Drawing. C) Assembly Drawing. D) None of above. Show Answer Correct Answer: C) Assembly Drawing. 7. Which is a chemical change? A) Paper torn in half. B) Melting butter. C) Expired cheese. D) Hair cutting. Show Answer Correct Answer: C) Expired cheese. 8. The layer of Earth where all life exists is called the: A) Biosphere. B) Biome. C) Community. D) Ecosystem. Show Answer Correct Answer: A) Biosphere. 9. What hard, tough, and shiny substance covers the crown? A) Enamel. B) Diamonds. C) Wax. D) None of above. Show Answer Correct Answer: A) Enamel. 10. Your car has a mass of 2500 kg and a force of 5000 N. How fast will it accelerate? A) 20 m/s2. B) 2 m/s2. C) 0.5 m/s2. D) 120 N. Show Answer Correct Answer: B) 2 m/s2. 11. Have a high melting point A) Metals. B) Non-Metals. Show Answer Correct Answer: A) Metals. 12. Is the following statement true or false? Vitamin C helps the body resist infection. A) True. B) False. Show Answer Correct Answer: A) True. 13. Sum of potential energy adn kinetic energy in a system of objects A) Kinetic. B) Potential. C) Electric. D) Mechanical. Show Answer Correct Answer: D) Mechanical. 14. The Layer of the atmosphere where it is the hottest layer. This is also where Auroras are observed A) HFCs (Hydrofluorocarbons). B) Ozone. C) Mesosphere. D) Thermosphere. Show Answer Correct Answer: D) Thermosphere. 15. Which bird builds the tiniest bird's nest in the world? A) Kingfisher. B) Pigeon. C) Bee hummingbirds. D) Sparrow. Show Answer Correct Answer: C) Bee hummingbirds. 16. Name the following molecule:P2S5 A) Phosphorus tetrasulfide. B) Phosphorus pentasulfide. C) Diphorphorus tetrasulfide. D) Diphosphorus pentasulfide. Show Answer Correct Answer: D) Diphosphorus pentasulfide. 17. Matter usually fills up more space when it..... A) Contracts. B) Expands. C) Lessens. D) None of above. Show Answer Correct Answer: B) Expands. 18. What two types of measurements make up DENSITY? A) Mass and Volume. B) Temperature and Mass. C) Grams and Centimeters. D) Volume and Weight. Show Answer Correct Answer: A) Mass and Volume. 19. What do Ornithologists study? A) Birds. B) Fish. C) Reptiles. D) None of above. Show Answer Correct Answer: A) Birds. 20. Which is a more accurate way to depict the transfer of energy within a particular ecosystem: A) Food chain. B) Food web. Show Answer Correct Answer: B) Food web. ← PreviousNext →Related QuizzesGeneral Science Quiz 1General Science Quiz 2General Science Quiz 3General Science Quiz 4General Science Quiz 5General Science Quiz 6General Science Quiz 7General Science Quiz 8General Science Quiz 9General Science Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books