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Overview
Planetary Motion: Explore Orbits, Rotations, and How Planets Move
You will discover how planets spin on their axes, travel around the Sun in elliptical orbits, and stay in place thanks to gravity's powerful pull.
What You'll Learn
You will learn rotation causes day and night every twenty-four hours.
You will discover planets orbit the Sun in elliptical, oval-shaped paths.
You will understand gravity keeps every planet moving in its orbit.
You will explore how axial tilt causes Earth's four seasonal changes.
What You'll Practice
1
You will identify key vocabulary like orbit, rotation, and revolution.
2
You will compare orbital periods and speeds of different solar planets.
3
You will explain how gravity and elliptical orbits affect planetary motion.
Why This Matters
Understanding planetary motion helps you explain everyday events like day and night and the seasons, and builds the foundation you need for exploring the wider universe.
This Unit Includes
Practice exercises
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Skills
Planetary Motion
Elliptical Orbits
Rotation
Revolution
Gravity
