Iron is a chemical element that is found in abundance in the Earth’s crust. Steel is an alloy, meaning it is a mixture of two of more metallic elements or one metallic and nonmetallic element.

A tidal wave is essentially a high tide that rises fast enough to appear in the form of a wave. It is solely affected by weather and the gravitational pull from the moon and sun. A tsunami, on the other hand,...

Surface water is the water that is found on the surface of the Earth, such as lakes, ponds, oceans, etc. Ground water is water that has been seeped and stored into the ground.

Rocks are formed from minerals or mineroids solidified into one. A rock could be made up of either one or more than one minerals combined together. Minerals are homogenous solids that have regular structures...

White Gold is white in color and is plated with rhodium, in order to make it appear brighter and more silver in appearance. Yellow Gold is yellow in color and lacks the hardness of white gold.