Other
Nuclear Twin: The Discovery of the Proton and Neutron
Trace the history of the discovery of protons and neutrons in this informative site.
Lawrence Berkeley National Laboratory
Berkeley Lab: Basic Nuclear Science Information
Site provides the ABC's of nuclear science including radioactivity and gamma decay to fission and comic rays.
Sophia Learning
Sophia: James Chadwick
This lesson explains the discovery of the neutron and Chadwick's experimental process.
Texas Education Agency
Texas Gateway: Radiation Types
Given illustrations, diagrams, or descriptions, students will identify alpha, beta, or gamma radiation.
Chem4kids
Chem4 Kids: Carbon
Click on the left navigation terms for some great information about the 6th element in the periodic table, "carbon." Content focuses on carbon's electrons, where you can find carbon in nature and in the home, and how carbon combines with...
Chem4kids
Chem4 Kids: Nitrogen (N)
Here you can find some great information about the 7th element in the periodic table, "nitrogen." Content focuses on nitrogen's electrons, where you can find nitrogen in nature and in the home, and how nitrogen combines with other elements.
Chem4kids
Chem4 Kids: Fluorine
Here you can find some great information about the 9th element in the periodic table, "fluorine." Content focuses on fluorine's electrons, where you can find fluorine in nature and in the home, and how fluorine combines with other elements.
Chem4kids
Chem4 Kids: Neon (Ne)
Here you can find some great information about the 10th element in the periodic table, "neon." Content focuses on neon's electrons, where you can find neon in nature and in the home, and how neon combines with other elements.
Chem4kids
Chem4 Kids: Magnesium (Mg)
Here you can find some great information about the 12th element in the periodic table, "magnesium." Content focuses on magnesium's electrons, where you can find magnesium in nature and in the home, and how magnesium combines with other...
Chem4kids
Chem4 Kids: Silicon (Si)
Here you can find some great information about the 14th element in the periodic table, "silicon." Content focuses on silicon's electrons, where you can find silicon in nature and in the home, and how silicon combines with other elements.
Chem4kids
Chem4 Kids: Phosphorus (P)
Here you can find some great information about the 15th element in the periodic table, "phosphorus." Content focuses on phosphorus' electrons, where you can find phosphorus in nature and in the home, and how phosphorus combines with...
Chem4kids
Chem4 Kids: Chlorine (Cl)
The 17th element in the periodic table is defined, chlorine. Find out how many electrons chlorine has and where you can find it in nature and in the home.
Chem4kids
Chem4 Kids: Argon (Ar)
Chem4Kids looks at the 18th element in the periodic table, argon. Content focuses on argon's electrons, where you can find argon in nature and in the home, and how argon combines with other elements.
Famous Scientists
Famous Scientists: Hans Bethe
Find out about Hans Bethe, one of the founders of quantum physics.
Soft Schools
Soft Schools: Subatomic Particles Quiz
Take this interactive, multiple-choice quiz over subatomic particles, then review your score and any missed questions at the end.