Beakman explains how caves are formed by acid dissolving limestone and he uses a model to show how this happens. He explains there are two major sections of a cave called the twilight zone (little light reaches in) and the dark zone (no light reaches). Beakman describes the different animals that live there and their features. They also talk about stalagmites and stalagtites and then make their own.
This clip describes how genetic mutations can lead to an animal's advantage in survival. Neil deGrasse Tyson talks about a Black bear that turns into a white bear because of a genetic mutation, which later became known as polar bears.
Beakman explains what dinosaurs are and that there are some modern animals believed be decendents of dinosaurs. He also explains the scientific evidence that has come about to change what we thought we knew about dinosaurs.
Beakman explains what acids are and performs a demo where he puts bone in vinegar for a few days to show that they become rubbery. He uses an animated clip to explain that acids take things apart rather than actually "burn."