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🪐 KNOW PRIMARY · AGES 6–11

PLANETS &
ASTRONOMY

🪐 From Tiny Rocks to Massive Giants — Our Solar System!

📖 8 Planets 🆓 FREE + PRO ⏱️ 5 min per comic 🧠 Quiz included
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THE SUN
Star center
→
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MERCURY
Hot & tiny
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VENUS
Hottest
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EARTH
Home sweet home
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MARS
Red planet
🌍 EARTH: OUR HOME IN SPACE
TOPIC 05 · PLANETS & ASTRONOMY · THE PERFECT PLANET · 1 YEAR = 365.25 DAYS
PAGE 1 OF 5 — EARTH'S POSITION AND SIZE
POSITION
Earth from space: the blue planet sitting in the Goldilocks zone as the third planet from the Sun
THIRD FROM THE SUN
Earth orbits between Venus and Mars, sitting in the "Goldilocks zone" — not too hot, not too cold! Our planet spins at about 1,670 km per hour at the equator and completes one lap around the Sun every 365.25 days. Perfect conditions for life!
PERFECT!
SIZE
Earth size: 12,742 km in diameter, the perfect size to hold an atmosphere and support life
🌍 Diameter: 12,742 km
⚖️ The perfect size for life
DISTANCE
Earth orbit: 150 million km from the Sun, completing one full loop every 365.25 days
📍 150 million km from Sun
🔁 365.25 days per year
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