Search and compare thousands of words and phrases in American Sign Language (ASL). The largest collection online.
How to sign: a science that deals with the history of the earth as recorded in rocks
Your browser does not support HTML5 video.
Categories: earth science
Within this category: economic geology, geophysics, hypsography, mineralogy, orology, paleogeology, speleology
Upload your sign now.
Add this video to your website by copying the code below.