Here are a few more places to find information on the rock process and different types of rocks:
https://www.neok12.com/Types-of-Rocks.htm
https://www.dkfindout.com/us/earth/rock-cycle/
https://nasaeclips.arc.nasa.gov/video/ourworld/our-world-the-rock-cycle
https://www.dkfindout.com/us/earth/rocks-and-minerals/sedimentary-rocks/
https://www.factmonster.com/encyclopedia/earth/geology-oceanography/info/rock