Learn about ultraviolet light, which is also known as UV light, ultraviolet radiation, or black light. See its categories and effects.| Science Notes and Projects
October 18 is Christian Friedrich Schönbein's birthday. Schönbein was the German chemist who discovered ozone and an efficient method of producing guncotton.| Science Notes and Projects
Learn about the difference between oxygen bleach and chlorine bleach. Compare the pros and cons of each type of bleach.| Science Notes and Projects
Get interesting oxygen facts. Discover chemical and physical data and general information and history of the element with atomic number 8.| Science Notes and Projects
Get the definition of a gas in science. See examples of gases including elements, mixtures, and gases in everyday life.| Science Notes and Projects