Physical Science

Chlorine is one of the more noxious elements. A greenish gas at room temperature, elemental chlorine is diatomic – which is to say two chlorine atoms are bound together by a single bond. Like all halogens (elements from Group 7…
Read more

Helium the second element in the periodic table after hydrogen is also the second most common element in the universe after hydrogen. High concentrations of helium are detectable within stars. On earth, however the noble gas helium is not such…
Read more

When a breathalyzer test is administered, the subject breaths into the device, where any ethanol in the breath becomes involved in a redox reaction with acidified potassium dichromate(VI) K2Cr2O7. Any alcohol is oxidized into ethanoic acid. Orange Cr(VI) is reduced…
Read more

The elementary particles are the particles that make up everything that we know and understand about our world and our universe. The majority of the particles that we know of are described by a wonderful masterpiece called the Standard Model….
Read more

There are a few fundamental laws that form the basis for all modern science. The most basic and fundamental law of all is called the law of conservation of mass. It forms the foundation for studying chemical reactions and the…
Read more

Two dozen years before halfnium was discovered and identified, its existence was already predicted by Dmitri Mendeleev. The same Russian scientist also predicted that this element will have properties that are similar to another metallic element, the zirconium. In the…
Read more

Matter is a tangible, touchable substance that can be seen, touched, tasted, and felt.  Matter is opposed to the intangibles that exist because of the interactions with other forces of nature. In educational studies, dependent upon the course of study,…
Read more

According to a recent article in the Wall Street Journal, a high-tech EU company named Astrium plans to partner with the American firm Alliant Techsystems to develop a new “low-cost” rocket booster that could launch future space tourists into orbit….
Read more

The creation of a beautiful fireworks display is the result of both science and art. Fireworks require at a minimum: fuel, an oxygen producer, color producer and binder to hold everything where it should be, in addition to propellants and…
Read more

Have you ever looked at the periodic table of the elements and wondered what all the numbers and symbols mean? If you have, you are not alone. Many people are confused by the complex diagram. This article will explain some…
Read more