These contain molecules of DNA, the building blocks of life.

VOA: special.2010.02.02

The wall is made of equal-sized blocks of building material.

VOA: special.2009.06.01

More powerful particle accelerators atom smashers, they used to call them have allowed physicists to learn ever more about the sub-atomic particles that are the basic building blocks of all matter.

VOA: standard.2010.03.05