The National Earth Science teachers association hosts the Windows to the Universe website at https://www.windows2universe.org/earth/geology/rocks_intro.html. Honestly, I don’t think the animations at this site are as interesting or well done as some of the other sites posted on our blog, but I really liked the links. There are links built into the descriptions, such as in Wikipedia entries. I really liked some of the linked resources. For the Rock Cycle there is a cool link to an article titled “Rock Eating Bacteria Found at the Bottom of the Sea”. I could see using the rock eating bacteria article as a hook or an extension activity.