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Planets and the Solar System

Tour the solar system from Mercury to Neptune. Compare inner and outer planets, explore moons and dwarf planets, and learn about asteroids and comets.

Choose an Adventure Step

📚5 Lessons🎯Science

⭐Suggested lesson

Recommended now: New Step. This is a fresh lesson in your learning path.

🧩1The Inner Planets. interactive. 12 minutes.

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🧩2The Outer Planets. interactive. 12 minutes.

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🧩3Moons, Dwarf Planets, and More. interactive. 10 minutes.

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🧩4Comparing Planets. interactive. 10 minutes.

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✅5Checkpoint: Solar System. quiz. 10 minutes.

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