Get nitrogen facts. Discover the history, chemical and physical properties, and uses of the element with atomic number 7 and symbol N.| Science Notes and Projects
Learn how to make water from hydrogen and oxygen. See why the method isn't used to make drinking water, but is used in fuel cells.| Science Notes and Projects
Get the definition of a molecule. See examples of molecules and learn the different between a molecule and a compound.| Science Notes and Projects
Learn about ozone, including what it is, what it smells like, and its properties. Discover how it protects against UV radiation.| Science Notes and Projects
Get the compound definition in chemistry. See examples of compounds and learn how they differ from molecules.| 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