random
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Michael Faraday | invented the electric dynamo. He also developed the system of oxidation numbers, discovered benzene and discovered the laws of electrolysis.
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| Sigmund Freud | published Interpretation of Dreams and was a Jewish-Austrian psychiatrist. He is often thought as the father of psychoanalysis.
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| Humphrey Davy | did experiments with laughing gas (nitrous oxide) and separated potassium, sodium, calcium, strontium, barium and magnesium. He discovered and named aluminum.
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| Chitin | Greek for tunic; cell walls of fungi; exoskeletons of anthropods
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| Bromine | means stench in Greek; atomic number 35
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| Galileo | worked with falling objects
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| most of the earth is covered in | sedimentary rocks (70%?)
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| Beriberi | a nervous system disorder caused by thiamine (vitamin B1) deficiency. The origin of the word is from a Sinhalese phrase meaning "I cannot, I cannot".
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| Iron | atomic number 26; atomic symbol Fe
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| rod cells | found in the retina and function in less intense light than cones. They are responsible for night vision and peripheral vision.
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| cone cells | found in the retina and function at bright light. They are responsible for sensing colors and are larger than rod cells.
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| Archimedes | regarded as the first mathematical physicist and discovered the principle of buoyancy while in his bathtub and ran naked into the streets yelling "Eureka!" he also is credited with inventing the first odometer. He invented many machines during the Secon
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| nitic acid | produced in the Ostwald Process
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| nitrogen | atomic number is 7 and constitutes 78.1% of the earth's atmosphere. It was discovered by Daniel Rutherford
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| Fujita Scale | ranks tornadoes on size and intensity
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| Mercalli Intensity Scale | marks the severity of earthquakes
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| Wilhelm Conrad Röntgen | won the first Nobel Prize in physics in 1901 for X-rays
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| Robert Hooke | wrote Micrographia and was the first to coin the term cell and was the first to see Jupiter's Big Red Spot. He also invented the first anemometer. He was the chief assistant to Christopher Wren.
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| Thompson | discovered the electron, put forth the plum pudding model of the atom, invented the mass spectrometer, and discovered the isotope. Ernest Rutherford was one of his students. He won the 1906 Physics Nobel Prize.
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| Rutherford | performed the gold foil experiment which led him to propose the orbital theory of the atom.
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| Einstein | won the 1921 Nobel Prize for physics because of his explanation of the photoelectric effect.
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| Roy Plunkett | discovered Teflon and is made from fluorine because of its high electronegeativity
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| guard cells | The cells located around the stomata
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| Volta | invented the first electric battery
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| Roentgen | also worked with capillary action
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| ox-bow lake | called a billabong in Australia
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| Skylab | the 1st space station that the U.S. launched and burned over Australia
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tiomyster
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