BOOK 7 OF 9 · GRADE 7 - AGES 12-13

Memoon and the Search for Another Home

EarthScientific observationSolar SystemScientific modelsWorlds beyond Earth

Is there a fish like Nimo somewhere else? The Sky Club hunts for another home with evidence.

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  • 89 PDF pages
  • 9 story chapters
  • Grade 7
  • Ages 12-13
  • Illustrated
  • Quiz and answers

About this book

Nimo wants to know whether there is another fish somewhere in the universe. Memoon and the Rooftop Sky Club launch a Home Hunt, comparing Earth, Venus, Mars, ocean moons and distant planets against a checklist of what life needs. They sort every claim into Known, Hint or Guess, and learn why habitable does not mean inhabited.

Nine story chapters explore atmospheres, greenhouse warming, water beneath ice, exoplanet transits and stellar wobble. Readers use tables, graphs and the Evidence Ladder to judge possible biosignatures, separate a promising clue from a discovery, and explain why Earth remains our only known home.

Includes a Transit Graph project using supplied practice data, a Planet Hunter badge, Sky Heroes, a Mistake Museum, a star-night guide and parent/teacher guidance. The matching 60-slide classroom deck supports discussion, evidence and graphs across all nine chapters.

How each chapter works
Illustrated story chapters combine Science Corners, Space Detective questions, diagrams and supervised activities. Readers test claims against evidence, explain model limits and use tables, graphs and calculations. Includes a recap, glossary, quiz with explained answers, project, Mistake Museum, observing guidance and a badge.

What they’ll learn

  • Distinguish a potentially habitable world from a world where life has actually been found.
  • Compare Earth's atmosphere, water, gravity and magnetic field with Venus and Mars.
  • Explore how Europa and Enceladus may hold liquid water beneath ice.
  • Use transit and wobble methods to explain how astronomers find planets around other stars.
  • Read a brightness dip and estimate planet size using the squared width-ratio rule.
  • Explain why a habitable zone or a possible biosignature is a clue rather than proof of life.
  • Weigh competing explanations using Known, Hint, Guess and an Evidence Ladder.

Contents

  1. 1Nimo's Question
  2. 2What Makes Earth Livable?
  3. 3Venus, the Overheated Twin
  4. 4Mars: Cold, Thin, Once Wet?
  5. 5Ocean Moons
  6. 6Finding Hidden Planets
  7. 7Strange New Worlds
  8. 8How Would We Know?
  9. 9Our Only Known Home

The project: Transit Graph

Plot 24 supplied brightness readings across twelve hours, mark the beginning, end and depth of a transit, and estimate a planet's width relative to a Sun-like star. Explain the graph's vertical scale and what further checks would be needed before announcing a planet. The numbers are made up for practice, not a real discovery; optional lamp-and-ball readings can be compared with the graph.

Who it’s for

Grade 7 readers aged 12-13, reading independently with a parent or teacher sharing the calculations, graphs and activities. All night observing and practical activities need adult supervision.

What you need: An adult, a Sky Notebook, pencils, graph paper, ruler and a calculator. Selected activities use lamps, balls, warm water and paperclips; an adult handles warm water, lamps and cords. Adults accompany all outdoor or evening work. Never look at the Sun, point binoculars or a telescope near it, or shine a torch into anyone's eyes.

Included with your purchase

  • The bookThe 89-page illustrated PDF ebook
  • Classroom teaching slidesMatching 60-slide PDF classroom deck covering all nine chapters and the Transit Graph project
Read a free sample: the first 10 pages

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Next in the series

Book 8: Memoon and the Life of Stars. Simbha's favourite star seems to have faded. Is it dying, or does the evidence tell another story?

See Book 8

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