This quiz works best with JavaScript enabled. Home > Science > Overview > General Science – Quiz 133 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books General Science Quiz 133 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If a hypothesis does not agree with the experiment designed to confirm it your only choice is to discard the hypothesis and start over. A) True. B) False. Show Answer Correct Answer: B) False. 2. In which layer of the atmosphere is the most water vapor found? A) Thermosphere. B) Mesosphere. C) Troposphere. D) Stratosphere. Show Answer Correct Answer: C) Troposphere. 3. What do we call the region of space around the nucleus where the probability of finding an electron is maximum? A) Shell. B) Sub-shell. C) Orbital. D) Electron cloud. Show Answer Correct Answer: C) Orbital. 4. In an experiment, the one variable that is changed is called the A) Dependent variable. B) Independent variable. C) Experimental variable. D) Controlled variable. Show Answer Correct Answer: B) Independent variable. 5. What is Newton's First Law of Motion A) Inertia is based on mass and velocity. B) For every action there is an opposite reaction. C) An object in motion stays in motion. D) Gravitational force. Show Answer Correct Answer: C) An object in motion stays in motion. 6. What is at the center of every atom? A) An electron. B) A compound. C) A molecule. D) A nucleus. Show Answer Correct Answer: D) A nucleus. 7. Stomata are found on the ..... of leaves. A) Upper side. B) Edges. C) Underside. D) Apex. Show Answer Correct Answer: C) Underside. 8. This macronutrient is usually second to be burned by the body for fuel. A) Fats. B) Carbohydrates. C) Proteins. D) None of above. Show Answer Correct Answer: A) Fats. 9. Which branch of physics is primarily concerned with heat and temperature? A) Quantum mechanics. B) Thermodynamics. C) Electromagnetism. D) Optics. Show Answer Correct Answer: B) Thermodynamics. 10. The number two in the chemical formula of H2O is called a..... A) Superscripts. B) Subscripts. C) Transcripts. D) Movie Scripts. Show Answer Correct Answer: B) Subscripts. 11. Which of the following is an example of ecological succession? A) Spring followed by summer. B) Tadpole becoming a frog. C) Meadow replacing a pond. D) Predators eating prey. Show Answer Correct Answer: C) Meadow replacing a pond. 12. Conductor or insulator? Plastic toy car A) Conductor. B) Insulator NGSS.MS-PS2-3. Show Answer Correct Answer: B) Insulator NGSS.MS-PS2-3. 13. You can test a mineral sample for streak by..... A) Rubbing it on a white tile. B) Weighting it. C) Breaking it. D) None of above. Show Answer Correct Answer: A) Rubbing it on a white tile. 14. Where is the glycolisic process editing? A) Mittocandor. B) Toal. C) Galfvamby. D) Am Heilney. Show Answer Correct Answer: B) Toal. 15. Variables are the factors that stay constant throughout the experiment A) True. B) False. Show Answer Correct Answer: B) False. 16. Which of these animals is not part of the "dog" family? A) Hyena. B) Possum. C) Jackal. D) Wolf. Show Answer Correct Answer: B) Possum. 17. Proton Charge A) Positive. B) Negative. C) Neutral. D) None of above. Show Answer Correct Answer: A) Positive. 18. Atoms joined together by SHARING electrons are? A) Ionic bonds. B) Covalent bonds. C) Metallic Bonds. D) James Bonds. Show Answer Correct Answer: B) Covalent bonds. 19. How can the resultant vector be obtained from original vectors? A) By adding their magnitudes. B) By placing them tip to tail. C) By subtracting their directions. D) By multiplying their components. Show Answer Correct Answer: B) By placing them tip to tail. 20. This organelle is in both plants and animals. It is a barrier between the cell and the environment. It controls what goes in and out of a cell: A) Cell wall. B) Cell membrane. C) Cell organelle. D) Mitochondria. Show Answer Correct Answer: B) Cell membrane. ← PreviousNext →Related QuizzesScience 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books