The top quark is the heaviest quark in particle physics.

This bacterium is about 1 micrometre in size.

It's 5 kilometers from my house to school.

Strontium is one of the elements abundantly present in the earth's crust.

He loves extreme sports.

The thickness of this notebook is about 10 millimeters.

He chose to discard the shadow for the substance.

We are building a new network system.

He claims to have the ability of psychometry.

Oligodendrocytes play a role in supporting the nerve cells of the central nervous system.