Berkelium is used for basic research and experiments in nuclear physics. The element is so heavy and unstable that it does not occur in nature. Only minute amounts of berkelium have ever been synthesized, and it has no i... More » Science Chemistry Atoms & Molecules

The elements from atomic number 89 to atomic number 103 form the actinide series. These elements are all radioactive metals with high electropositivity. They are highly dense, tarnish easily, react with water and dilute ... More »

Leptons and quarks constitute the smallest particles of matter, based on contemporary evidence in the field of particle physics. Traditionally, the atom was considered as the indivisible form of matter. More »

Some easy physics experiments for kids are studying how static electricity works using a balloon and wool cloth, making a rainbow or a parachute, and trying out different colored surfaces to see which one absorbs light b... More » Science Physics

The Powder Toy game works by providing users with virtual materials to use in order to simulate physics experiments. These virtual materials include liquids, gases and electronic components. The game can also simulate ai... More » Hobbies & Games Video & Online Games Online Games

Photogate timers are timing devices used to determine the velocity of a passing object in physics experiments. They are useful for measuring events within milliseconds or any interval that cannot be measured by a human b... More »

Potassium is a mineral used for the treatment and prevention of low potassium levels, according to WebMD. It is also used for treating high blood pressure and preventing stroke. More » Science Chemistry Atoms & Molecules