[Free Registration/Login may be required to access all resource tools.] Examine the composition of matter.

In this 4-question quiz, predict how charge gets transferred by conduction between two objects.

An introduction to the Large Hadron Collider (LHC), offering information on its location, its experiments, and what scientists hope to learn through this machine buried below Geneva, Switzerland. Click a menu of links to read details...

This webpage from the Florida State University offers an applet with succeeding images, each "10 times bigger or smaller than the one preceding or following it," as a demonstration of exponential notation.

From CERN, the European Center for Nuclear Research, this site provides a brief description of the physics underlying how a linear accelerator works.

Univ of Kentucky research projects address "What is the structure of the nucleon and how do its various interactions and excitations reveal the properties of its constituents?". QCD, the four forces, and nucleon-nucleon interactions are...

This Shodor Education Foundation page has a nice look at the major theories of acids and bases in less than one page. There are very simple defintions.

This site from Jefferson Lab provides a description of beta decay along with two helpful formula examples. Several links are provided throughout this page for additional information on related subjects.

A summary of the achievements of J. J. Thomson, Ernest Rutherford, Niels Bohr, and Erwin Schrodinger.

Collapsed stars, between white dwarfs and black holes, can be studied as quark-gluon masses, or quark-hyperon groups. Extreme pressures lead to extreme states.

Site presents a straightforward presentation of Rutherford's work concerning the Law of Energy Conservation. Provides an adequate summary of early science on the nucleus, and includes much needed illustrations.

This lesson will define an isotope and explain what happens if the number of neutrons in an atom changes. It is 9 of 9 in the series titled "Isotopes."

This lesson will define an isotope and explain what happens if the number of neutrons in an atom changes. It is 1 of 9 in the series titled "Isotopes."

This lesson will introduce the subatomic particles and explain where they are located and how they interact. It is 3 of 7 in the series titled "Subatomic Particles."

This lesson will introduce the subatomic particles and explain where they are located and how they interact. It is 4 of 7 in the series titled "Subatomic Particles."

This lesson will introduce the subatomic particles and explain where they are located and how they interact. It is 6 of 7 in the series titled "Subatomic Particles."

This lesson will introduce the subatomic particles and explain where they are located and how they interact. It is 7 of 7 in the series titled "Subatomic Particles."

Describe the difference between the subatomic particles, including their masses, locations, and charges. This lesson is 5 of 7 in the series titled "Subatomic Particles."

This lesson will explain that electrons are negatively charged particles with negligible mass and are found in pairs in orbitals surrounding the nucleus of an atom. It is 3 of 3 in the series titled "Subatomic Particles: The Electron."

This lesson will provide an understanding of the basic chemistry of atoms. It is 3 of 5 in the series titled "Atoms."

This lesson will provide an understanding of the basic chemistry of atoms. It is 4 of 5 in the series titled "Atoms."

This lesson will provide an understanding of the basic chemistry of atoms. It is 5 of 5 in the series titled "Atoms."

This lesson will explain that neutrons are particles in the nucleus that have no charge and a mass of one amu. It is 2 of 3 in the series titled "Subatomic Particles: The Neutron."

Use this site to learn about the four forces of nature. Also learn what determines the strength of a force. This question and answer site is a link of the Fermi National Accelerator Laboratory.