What's at the Center of the Earth? Layers! / What's
Episode #402 / Length: 29 minutes
"What's at the Center of the Earth? Layers!" -- The Conductor takes the Pteranodon family on a very special journey on a new invention - the Drill Engine Train - in search of the perfect spot for a new Underground Dinosaur Train Station! Don is THRILLED to be venturing into the BIGGEST HOLE THE EARTH HAS EVER KNOWN! Shiny is nervous to be underground, until they meet a new friend (a Mesozoic Mole named NATASHA NECROLESTES), who teaches them all about the different layers of the Earth. Story A Educational Objectives: The Earth has several layers - the crust (a thin, solid outermost layer), the mantle (the deeper, denser layer), and the core (the super dense center that's as hot as the sun). Also, a Necrolestes is a type of Mesozoic mole. "What's at the Center of the Earth? Fossils!" -- As the Pteranodon Family continues their journey underground, Don accidentally breaks Buddy's trilobite fossil (the oldest fossil in his collection!) When the search for another trilobite fossil turns up empty, their new friend Natasha Necrolestes takes them to Fossil Alley, where the kids learn that the older the fossil, the deeper underground it is. Story B Educational Objectives: You don't usually find fossils from different time periods mixed together in the Earth. The Law of Superposition means that when we see a stack of rock layers, the deeper you go into the Earth, the older the rocks and fossils you find
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