1. Hydrogen   Michael Faraday   Henry Cavendish   Gregor Mendel   Karl Wilheim Scheele   Hint Half-n-half Clue   2. Malaria is carried by mosquitoes   Ronald Ross   Sir Fredrick Grant Banting   Sir Humphry Davy   Gregor Mendel   Half-n-half Clue   3. Modern Theory of Atomic Structure   Sir Humphry Davy   Neels H. D. Bohr   Euclid   Michael Faraday   Half-n-half Clue   4. Pasteurization   Louis Pasteur   Gregor Mendel   Sir Isaac Newton   Sir Humphry Davy   Half-n-half Clue   5. Principles of Geometry   Karl Wilheim Scheele   Hans Christian   Sir Humphry Davy   Euclid   Half-n-half Clue   6. Neptunium   Enrico Fermi   Hans Christian   Sir Isaac Newton   Sir Fredrick Grant Banting   Half-n-half Clue   7. Theory of Evolution   Neels H. D. Bohr   Enrico Fermi   Charles Darwin   Ronald Ross   Half-n-half Clue