Welcome!
The Community portal is a place to find collaborations, tasks, and news about English Wikipedia.
Other links: Help desk •
Reference desk •
Peer editing help •
Village pump (discussion forum) •
Dispute resolution
Collaborations
|
Today's article for improvement
Every week, Wikipedians choose a new article to improve at Today's article for improvement. Feel free to jump in and edit, or join the project to find a new article for a later week.
Rock (geology)
In geology, a rock is a naturally occurring solid aggregate of one or more minerals or mineraloids. For example, the common rock, granite, is a combination of the quartz, feldspar and biotite minerals. The Earth's outer solid layer, the lithosphere, is made of rock.
Rocks have been used by mankind through out history. From the Stone Age rocks have been used for tools. The minerals and metals we find in rocks have been essential to human civilization.
Three major groups of rocks are defined: igneous, sedimentary, and metamorphic. The scientific study of rocks is called petrology, which is an essential component of geology.
|
|
News and other community areas
|
- Dashboard - coordinating the various discussions taking place throughout Wikipedia
- Meetups - regional gatherings of people
- News - many sources of news about Wikipedia
The links below lead to the main community pages of the projects.
All of these projects are multilingual and open-content. |
| Meta-Wiki – |
Coordination of all Wikimedia projects. |
| Wiktionary – |
A collaborative multilingual dictionary. |
| Wikinews – |
News stories written by readers. |
| Wikibooks – |
A collection of collaborative non-fiction books. |
| Wikiquote – |
A compendium of referenced quotations. |
| Wikisource – |
A repository for free source texts. |
| Wikispecies – |
A directory of species. |
| Wikiversity – |
Where teachers learn, and learners teach. |
| Commons – |
Repository for free images and other media files. |
|