Geology: 1

"Lesson one, Leo," she said, tapping a fingernail on a sparkly cluster of crystals. "This is the beginning."

Her younger brother, Leo, sighed, kicking a pebble down the trail. "It's a rock, Elara. We've been hiking for an hour to look at a rock." geology 1

She traced the pink vein. "But the world doesn't like staying still. Pressure built. The ground cracked. And a second fiery soup, different from the first, squeezed into the cracks like toothpaste. It cooled faster, making this fine pink ribbon. That's Geology 1, Leo: Fire makes rock. Time shapes it. " "Lesson one, Leo," she said, tapping a fingernail

Leo stopped fidgeting. "Fire?"