This quiz works best with JavaScript enabled. Home > Science > General Science – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books General Science Quiz 15 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Before running a race, you should eat ..... A) Lipids to provide waterproofing against sweat. B) Carbs to give you quick energy. C) Proteins to give you energy. D) Nucleic acids to aid in transferring information from your brain to your muscles. Show Answer Correct Answer: B) Carbs to give you quick energy. 2. Why is Mars called the red planet A) It is composed of weathered rocks containing iron oxide. B) Red bacteria in the soil. C) The clouds surrounding the planet make it appear red. D) Light from the Sun is refracted by Mar's thick atmosphere, giving it a reddish hue. Show Answer Correct Answer: A) It is composed of weathered rocks containing iron oxide. 3. Nichrome metal element is used in electric heaters, because? A) It has high resistivity. B) Its melting point is high. C) More powerful current can be flow in it. D) For all the above reasons. Show Answer Correct Answer: D) For all the above reasons. 4. The best way to separate isotopes of the same element is to exploit: A) Differences in chemical reactivity. B) Differences in reduction potential. C) Difference in toxicity. D) Differences in mass. Show Answer Correct Answer: D) Differences in mass. 5. The vaporization of water. A) Evaporation. B) Condensation. C) Precipitation. D) Vaporization. Show Answer Correct Answer: A) Evaporation. 6. Ecosystem consists of living organisms only. A) False. B) True. Show Answer Correct Answer: A) False. 7. ..... is the ability to do work A) Force. B) Power. C) Energy. D) None of above. Show Answer Correct Answer: C) Energy. 8. Mechanical devices that make use of two or more simple machines A) Simple machines. B) Compound/complex machines. Show Answer Correct Answer: B) Compound/complex machines. 9. A form of matter that has no definite shape or volume. A) Solid. B) Liquid. C) Gas. D) Plasma. Show Answer Correct Answer: C) Gas. 10. Information collected using specific methods for a specific purpose of studying or analyzing. A) Data. B) Computational thinking. C) Qualitative. D) Quantitative. Show Answer Correct Answer: A) Data. 11. ..... is a change that produces one or more new substances with new chemical properties. A) Physical change. B) Energy level. C) Chemical change. D) Ion. E) Chemical bond. Show Answer Correct Answer: C) Chemical change. 12. Can you guess how many Scientific Attitudes there are? A) 2. B) 3. C) 5. D) 7. Show Answer Correct Answer: D) 7. 13. Which of the following is an example of friction that is helpful? A) Brakes used on a bike. B) Tires from a car on the road. C) Tread on the bottom of your shoes. D) All are examples that are helpful. Show Answer Correct Answer: D) All are examples that are helpful. 14. Which is not a semi-conductor? A) Silicon. B) Arsenic. C) Germanium. D) Both a and c. Show Answer Correct Answer: B) Arsenic. 15. What is the force that pushes or pulls an object called? A) Force. B) Pull. C) Gravity. D) Velocity. Show Answer Correct Answer: A) Force. 16. When an unstable radioactive atom decays, it usually turns into: A) A more stable atom. B) A less stable atom. C) The exact same atom but with less pure energy. D) Empty space. Show Answer Correct Answer: A) A more stable atom. 17. Heating a home can take up a lot of energy. What could save energy? A) Turning up the heater. B) Turning up the air conditioner. C) Turning down the heater when you are not home. D) Turning on the heater when you are not home. Show Answer Correct Answer: C) Turning down the heater when you are not home. 18. Deforestation and rising population are becoming a cause of Global worming. A) True. B) False. C) None. D) None of above. Show Answer Correct Answer: A) True. 19. Stored energy between atoms, ions, and molecule is..... energy? A) Potential. B) Mass. C) Nuclear. D) Chemical. Show Answer Correct Answer: A) Potential. 20. The phenomenon of distillation was given in A) 861-930 A.D. B) 980-1037 A.D. C) 965-1039 A.D. D) 722-803 A.D. Show Answer Correct Answer: D) 722-803 A.D. ← 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