Corrosive substance Corrosive substance A corrosive substance is one that will damage or destroy other substances with which it comes into contact by means of a chemical reaction. The word "corrosive" is derived from the Latin verb "corrodere", which means "to gnaw", indicating how these substances seem to "gnaw" their way through flesh or other materials. The word corrosive refers to any chemical that will dissolve the structure of an object. They can be acids, oxidizers, or bases. When they come in contact with a surface, the surface deteriorates. The deterioration can happen in minutes, e.g. concentrated muriatic acid spilled on skin;
Magic Tree House Magic Tree House Merlin Mission Books 1-27 were written for more advanced readers. They are more challenging adventures for readers ages 7–10. The Magic Tree House Merlin Missions were originally ordered sequentially, starting at Book #29 (Christmas in Camelot). With the 25th anniversary re-prints, the books have been separated into their own distinct series and re-numbered starting at Merlin Mission #1. On January 6, 2015, the first Magic Tree House Super Edition was released. It is 183 pages long. The super editions are longer than the original Magic Tree House books and the Magic Tree House Merlin Missions. The Magic