Science, Maths & Technology
An introduction to geology
...public buildings and in public spaces. MARCUS BADGER: Sometimes retailers will use rocks to convey subtle messages about the quality of their wares. Let’s go see what we can find. ANNE JAY: Come on! Come and have a look at this. So, this is a beautiful igneous rock. So what "igneous" means is that the rock was actually molten. This rock was once a liquid. And it cooled...