Science Key Facts

ScienceQuiz → Key Facts

Everyday Science (or general Science) Key Facts.

  • The temperature at which all of solid becomes a liquid is called its melting point.
  • The temperature at which all of a liquid becomes a gas is called its boiling point.
  • Only 2% of the world’s water is in the form of ice.
  • The heavies solid is the element osmium.
  • The lightest gas is hydrogen. About 99.99% of the volume of hydrogen gas is empty space.
  • The average adult has a blood volume of about 5 liters.
  • Each day human body breathe in 15000 to 20000 liters of air.
  • The average human body contains about 250 grams of sodium chloride.
  • The most abundant element in the universe is hydrogen.
  • The most abundant element in the earth’s crust is oxygen.
  • The second most abundant element in the earth’s crust is silicon.
  • The deepest place on Earth is Mariana Trench.
  • Bond making is Exothermic Reaction, and Bond breaking is Endothermic Reaction.