This is a collection of nickel facts. Nickel is the element with symbol Ni and atomic number 28. It is an important transition metal.| 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
Learn about erosion in geology. Explore its definition, types, causes, and impact both by and on human activities.| Science Notes and Projects
Learn about tectonic plates in geology. Get a tectonic plate map, learn the names of the major plates, and discover the types of boundaries.| Science Notes and Projects
Get the atomic number definition. See examples of the atomic number and learn how it differs from mass number.| Science Notes and Projects
Get the element definition in chemistry. See examples of chemical elements, learn how many there are, and see how they are identified.| Science Notes and Projects