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.
Rocks come in many different types and look very different. Some rocks are very hard, easy to scratch, are crumbly, hold water and some let water run through them. There are different types of rock and all are used for different things.