Are You Smarter Than a Tenth-Grader?

15 Points Per Correct Answer - No time limit  

1. About 5000 years ago, Egyptians obtained a powder by heating gypsum (calcium sulphate) in open air fires. This powder was used for cementing blocks of their monuments. Chemically, it is calcium sulphate hemihydrate. What is it more commonly known as? Plaster of Paris Quick Lime Portland Cement Bleaching Powder

2. Which of the following is a defect of vision? Europia Eatopia Ethiopia Myopia

3. What is a cathode? the negative electrode the electrode where oxidation occurs the electrode where reduction occurs the positive electrode

4. Which of these conditions is NOT necessary for combustion to occur? presence of combustible material (fuel) attainment of ignition temperature presence of air (oxygen) as a supporter of combustion all these conditions are necessary

5. Where was the first ever atomic bomb exploded by U.S.? Alamogordo, New Mexico Nagasaki, Japan Hiroshima, Japan Bikini Atoll

6. Let me tell you, the muscle fibers of the heart are specialized at certain parts of the heart to generate electric currents that in turn cause the normal rhythmic heartbeats. Now you tell me, which instrument is it that records these electrical changes during heartbeat? electrocardiograph electroencephalograph electrocardiogram pace maker

7. A reflex action is an unconscious and involuntary response of muscles and glands to a stimulus. Which of the following is NOT a reflex action? coughing netsurfing sneezing yawning

8. When I say 'Tom is an alcoholic', which alcohol am I referring to? methanol ethyl alcohol isopropyl alcohol phenol

9. Which of these is NOT a barrier method to prevent pregnancy? tubectomy diaphragm condom cervical cap

10. Which of these constellations is not also a zodiac sign? Cetus Sagittarius Taurus Aquarius