[H2O+smile]

Hi,
I'm new here. I admired these forums, it's suitable for several ages.
I read some information about atomic structure and want simple explanation for quarks and neutrinos. Here is what I read:
In reality, protons and neutrons may be made of even more fundamental particles, such as quarks. Furthermore, there are other mass-bearing particles that are not associated with atoms, such as neutrinos.

[Arkcon]

Well, start here:  http://en.wikipedia.org/wiki/Quark  And see what you can understand, and ask us about what you can't understand.