what is rock

This is where you can post a request for a hymn search (to post a new request, simply click on the words "Hymn Lyrics Search Requests" and scroll down until you see "Post a New Topic").
seoxinh
Posts: 1
Joined: Fri May 15, 2020 5:32 am
Contact:

what is rock

Post by seoxinh » Fri May 15, 2020 5:36 am

A rock is a solid collection of mineral grains that grow or become cemented together. Some rocks are large while others are small. Small rocks are called pebbles. Every rock is made up of one or more minerals. Geologists (people who study rocks and minerals) classify rocks according to the way they are formed. The three main types are igneous, sedimentary, and metamorphic rocks.

Who is online

Users browsing this forum: Bing [Bot], Google [Bot] and 16 guests