Dinosaur Train - Season 4 - Eps 20: What's at the Center of the Earth? (4): Minerals
While digging even further underground, the drill bit on the Drill Engine Train breaks. The Pteranodon Family find themselves in the Cave of Giant Crystals, where they learn all about rocks and crystals (what they are, how they're different, how they form). In order to get back home, the Pteranodon Family has to fix the drill bit by finding a mineral harder than the mineral that broke the bit in the first place. Story B Educational Objectives: Minerals form naturally in the Earth and are made of the same thing all the way through, while rocks are made up of a bunch of different kinds of minerals. Minerals come in thousands of different types (more than 4000 to be more exact), many of which form large and beautiful crystals, some of which are harder than others.
About Dinosaur Train

Title: Dinosaur Train
First Air Date: 2009-09-07
Last Air Date: 2019-11-18
Status: Returning Series
Rating: 6.2/10 (from 37 votes)
Language: EN
Seasons: 6
Total Episodes: 200
Network: PBS Kids
Genres: Animation, Kids
Production Companies: The Jim Henson Company
Synopsis
Join Buddy, a Tyrannosaurus Rex, and his adoptive Pteranodon family on a whimsical voyage through prehistoric jungles, swamps, volcanoes and oceans, as they unearth basic concepts in life science, natural history and paleontology.