quarks

Simple text and illustrations introduce quarks to young readers.

Explore the history of the discovery and the properties of the quark, one of the most basic constituents of matter.

Discusses quarks, fundamental particles that make up protons, neutrons, and other subatomic particles, and describes the process by which scientists came to "detect" them.

An explanation of the composition, behavior, and uses of atoms, molecules, and quarks, the building blocks of the universe.

Explains the quark model of the proton and neutron and describes the basic structure of matter.