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 250g 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.