Chemical energy is energy stored in the bonds of chemical compounds, like atoms and molecules.

The largest solid internal organ is  liver.

It weighs approximately 3–3.5 pounds or 1.36–1.59 kilograms and is about the size of a football.

For an approximate result, multiply the mass value by 2.205

The Earth can be divided into four main layers: the solid crust on the outside, the mantle, the outer core and the inner core. Out of them, the crust is the thinnest layer of the Earth, amounting for less than 1% of our planet's volume.