- The structure of DNA was first proposed by James D. Watson and Francis Crick in 1953.
- Thermistor is an instrument whose resistance varies with temperature.
- A fully-grown female roundworm can lay about 200,000 eggs a day.
- About 60% of the Earth's crust is made up of feldspars (a group of tectosilicate minerals).
- Rüppell's Vulture is the highest flying bird in the world. It can fly at an altitude of 11,000 metres above sea level.
- Serology is a branch of science which deals with the study of blood serum and other fluids in the body.
- Penicillin was discovered by Alexander Fleming in 1928.
- A green jar viewed through a red glass appears black.
- One H.P (Horse Power) is equal to 746 watts.
- A rabbit's cell contains 44 chromosomes.
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