General

• Iron


  the principle metal used in manufacturing steel
• Alimeter


  used for measuring altitude
• Oology


  the study of birds' eggs
• Radioactivity

  discovered by Henry Bacquerel
• Lead


  the metal used in storage batteries
• Hygrometer


  instrument used to measure the relative humidity of air
• Torricelli


  inventor of the barometer
• Frederick Soddy


  discovered the existence of isotopes
• Enrico Ferni


  inventor of the nuclear reactor
• Crescograph


  used to measure the rate of growth of a plant
• Pendulum


  Galileo's first scientific discovery
• Microscope


  invented by Aaton Van Leewen Hock
• Aristotle


  scientist known as father of modern biology
• Robert Hooke


  first person to see a cell under a microscope
• Worffia


  the smallest flowering plant
• Karl Landsteiner


  discovered the four blood groups
• Sodium


  discovered by Sir Humphry Davy
• 8


  atomic number of oxygen
• Amino acids


  basic building blocks of proteins
• Gossipium Hirsutum


  botanical name of the cotton plant
• Electroscope


  used to detect charges on a body
• Parthenocarthic


  adjective used to describe fruits that are formed without fertilization
• Monocarpic


  adjective used to describe plants that flower only once in their lifetime
• Oryza sativa


  botanical name for rice
• Penicillin


  obtained from mould
• Seguoia Gigantica


  largest tree in the world
• Herpetology

  study of reptiles
• Entomology


  study of insects
• Ornithology


  study of birds
• Ichtyology

  study of fishes
• Osteology


  study of bones
• Allium cepa

  botanical name for onion
• Histology

  study of tissues
• Electric lamp


  invented by Thomas alva Edison
• Ochlophobia


  fear of crowds
• Bibliophobia


  fear of books
• Clinophobia


  fear of going to bed
• Au


  chemical symbol for gold
• Na


  chemical symbol for sodium
• Sr


  chemical symbol for strontium