The goal of Unit 11 of The Physics Classroom Tutorial is to develop an understanding of the nature, properties, behavior, and mathematics of sound and to apply this understanding to the analysis of music and musical instruments.
It's as big as the continental United States, but covered in sand. If you like to dig your feet in the sand, then the Sahara Desert is the place for you. Watch out though - it's hot! Temperatures range from 122 F to below freezing in the winter. Sand dunes can reach over 189 meters tall or be flat for miles and miles.
Why is the Sahara a desert? It is desert due to lack of water, lack of farmable land, the type of flora and fauna that live there, climate, and vast amounts of sand. It gets very hot in the day and cold â¦at night. It has sandstorms that are very severe.