Word: whats
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Dates: during 1920-1929
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2. When you read the names of the following persons, what fact is immediately associated with them in your mind? Answer in one or two words in each case. Mendeleff, Davy, Perkin, Faraday, Curie, Priestley, Gay-Lussac, Dalton, Solvay, Ramsay, Lavoisier.
5. What did James Watt do?
7. What three very low forms of life can you name?
9. On what physiological phenomenon is the success of motion picture projection dependent?
10. What is a meteor?