Infrastructure as a Service (IaaS) is a form of cloud computing that provides virtualized computing resources over the Internet. IaaS is one of three main categories of cloud computing services, alongside Software as a Service (SaaS) and Platform as a Service (PaaS). Download: Your guide to the Public Cloud.
02. 1  of 09. Rocks Vocabulary Study Sheet. 2  03. of 09. Rocks Vocabulary. 3  04. of 09. Rocks Word Search. 4  05. of 09. Rocks Crossword Puzzle. 5  06. of 09. Rocks Challenge Worksheet. 6  07. of 09. Rocks Alphabet Activity. 7  08. of 09. Rocks Spelling Worksheet. 8  09. of 09. Rocks Coloring Page.
Rock types are specific assemblages of minerals (most rocks are composed of minerals). Rocks are much more vaguely defined than minerals. Even rocks within one rock type may have a highly variable composition.ence, all other rock types are derivatives of igneous rocks. Some important igneous rocks from left to right: gabbro, andesite, pegmatite, basalt, pumice, porphyry, obsidian, granite, and tuff.