Class 5 (SSC) • Science (सामान्य विज्ञान)Chapter 2: Motions of the Earth⭐ Topic 1
Motions of the Earth
The Earth has two main motions - rotation and revolution - which cause day and night and the changing seasons throughout the year.
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Rotation is the Earth spinning on its axis, completing one full rotation every 24 hours, causing day and night.
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Remember these!
- Rotation: Earth spins on its axis.
- One rotation = 24 hours, causes day/night.
- Revolution: Earth orbits the sun.
- One orbit ≈ 365.25 days = one year.
- Earth's axis tilt matters.
- Combined with revolution, causes seasons.
- This explains day, year, seasons.
- It's a basic astronomy concept.
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motions of the earthssc std 5