The video tutorial explains classic rocks, which are made from broken pieces of other rocks. The term 'classic' is derived from the Greek word 'classtos', meaning broken. Classic rocks, also known as tridal rocks, are categorized based on grain size and shape. The tutorial describes various types of classic rocks, including conglomerates, which have smooth large fragments, and breschias, which have jagged fragments. It also covers how small particles like sand form sandstone, while even smaller particles like silt and clay form sedimentary rocks such as shale.

What are classic rocks and how are they defined?

What does the term 'classic' mean in the context of classic rocks?

Explain the difference between conglomerates and breccias.

What types of particles are used to form sandstone?

Describe the process of how sedimentary rocks are formed.