Cathy Rocks' Story Quarry
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Cathy Rocks' Story Quarry
The pebble that remembered everything
by Cathy Rocks
Scientific bedtime stories for children age 4-9
Ancient oceans, early animals, shells, reefs, early plants, and the first steps onto land
Acasta – Earth History for Children
Trilogy 2, Books 4–6: • Cambrian • Ordovician • Silurian
What if a tiny pebble could remember when life first began to explore the world?
In this beautifully paced second trilogy of Acasta – Earth History for Children, siblings Ayla and her younger brother Silas are once again guided by Acasta — a softly glowing pebble who has quietly witnessed the story of life unfold in Earth’s ancient seas.
Across three calming bedtime adventures, Acasta carries them through one of the most exciting chapters in Earth’s history — from oceans bursting with strange and wonderful creatures, to the flourishing of complex marine life, and finally to the first brave plants greening the land.
Included in this Trilogy:
Book 4: The Cambrian Period
The seas fill with extraordinary new creatures as life diversifies in astonishing ways.
Book 5: The Ordovician Period
Marine life flourishes, shells become common, reefs grow, and the first hints of life begin to appear on land.
Book 6: The Silurian Period
Plants spread across the land — and animals slowly begin to follow.
Written especially for children ages 4–9, these gentle stories blend accurate Earth science with warm, reassuring storytelling. Big scientific ideas — ancient oceans, early animals, shells, reefs, early plants, and the first steps onto land — are introduced in a calm, child-friendly way. Each book also includes a simple glossary to support parents, caregivers, and educators.
Perfect for bedtime reading, classroom learning, homeschooling, and curious young minds, Acasta the Pebble – Earth’s History for Children encourages wonder, calm, and an early love of science — one quiet story at a time.
Cathy Rocks is a scientist and author with a master's degree in Paleontology/Geology and a PhD in Geophysics.
Cathy Rocks is a scientist and author with a master’s degree in Paleontology/Geology and a Ph.D. in Geophysics. Fascinated since childhood by dinosaurs, volcanoes, and earthquakes, she is passionate about helping children discover the wonders of Earth sciences. Cathy creates interactive and engaging books that make complex scientific concepts accessible, fun, and inspiring—ideal for parents, teachers, museums, and bookstores looking to spark curiosity and a lasting love of learning. Her books are available in English, German and Spanish - just scroll further down and explore.
The pebble that remembered everything
Scientific bedtime stories for children age 4-9
Early oceans, moon formation, microorganisms, oxygen, multicellular life, and Earth’s changing atmosphere
The pebble that remembered everything
Scientific bedtime stories for children age 4-9
Early forests, amphibians, insects, coal swamps, reptiles, and the formation of Pangea
The pebble that remembered everything
Scientific bedtime stories for children age 4-9
Dinosaurs, early mammals, flowering plants, changing climates, and extinction
The pebble that remembered everything
Scientific bedtime stories for children age 4-9
Changing climates, mammals, grasslands, evolution, ice ages, and the appearance of humans
Der Kieselstein mit langem Gedächtnis
Wissenschaftliche Gutenachtgeschichten für Kinder ab 4 Jahren
Frühe Ozeane, Mondentstehung, Mikroorganismen, Sauerstoff, mehrzelliges Leben und die sich verändernde Atmosphäre der Erde
Der Kieselstein mit langem Gedächtnis
Wissenschaftliche Gutenachtgeschichten für Kinder ab 4 Jahren
Urozeane, erste Tiere, Muscheln, Riffe, frühe Pflanzen und die ersten Schritte an Land
Der Kieselstein mit langem Gedächtnis
Wissenschafltiche Gutenachtgeschichten für Kinder ab 4 Jahren
Frühe Wälder, Amphibien, Insekten, Kohlesümpfe, Reptilien und die Entstehung von Pangäa
Der Kieselstein mit langem Gedächtnis
Wissenschaftliche Gutenachtgeschichten für Kinder ab 4 Jahren
Dinosaurier, frühe Säugetiere, Blütenpflanzen, Klimaveränderungen und Aussterben der Dinosaurier
Der Kieselstein mit langem Gedächtnis
Wissenschaftliche Gutenachtgeschichten für Kinder ab 4 Jahren
Klimaveränderungen, Säugetiere, Grasland, Evolution, Eiszeiten und die Entwicklung des Menschen
El guijarro con memoria larga
Cuentos científicos para niños de 4 a 9 años antes de dormir
Los primeros océanos, la formación de la luna, los microorganismos, el oxígeno, la vida multicelular y los cambios en la atmósfera terrestre
El guijarro con memoria larga
Cuentos científicos para niños de 4 a 9 años antes de dormir
Océanos antiguos, animales primitivos, conchas, arrecifes, plantas primitivas y los primeros pasos sobre la tierra
El guijarro con memoria larga
Cuentos científicos para niños de 4 a 9 años antes de dormir
Bosques primitivos, anfibios, insectos, pantanos de carbón, reptiles y la formación de Pangea
El guijarro con memoria larga
Cuentos científicos para niños de 4 a 9 años antes de dormir
Dinosaurios, mamíferos primitivos, plantas con flores, cambios climáticos y extinción de los dinosaurios
El guijarro con memoria larga
Cuentos científicos para niños de 4 a 9 años antes de dormir
Cambio climático, mamíferos, praderas, evolución, edades de hielo y la evolución de los humanos