https://www.patreon.com/freeschool - Help support more content like this! Caves may seem mysterious, but we actually know a lot about them and how they are formed. Most caves are formed by the action of water, but others are formed by volcanoes, earthquakes, or wind! Come learn more about different types of caves in this fun and educational video. Like this video if you want to see more videos about EARTH SCIENCE! Subscribe to FreeSchool: https://www.youtube.com/user/watchfreeschool?sub_confirmation=1 Visit us on Facebook: https://www.facebook.com/watchFreeSchool Check our our companion channel, FreeSchool Mom! https://www.youtube.com/channel/UCTcEtHRQhqiCZIIb77LyDmA And our NEW channel for little ones, FreeSchool Early Birds! https://www.youtube.com/channel/UC3OV62x86XHwaqsxLsuy8dA