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Quick Revision: The Solar System Video Lecture | Science for Class 4

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FAQs on Quick Revision: The Solar System Video Lecture - Science for Class 4

1. What are the main components of the Solar System?
Ans. The Solar System consists of the Sun, eight planets, their moons, dwarf planets, asteroids, comets, and meteoroids. The Sun is at the center, providing light and heat, while the planets revolve around it in elliptical orbits.
2. How many planets are there in the Solar System?
Ans. There are eight recognized planets in the Solar System. They are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Pluto was reclassified as a dwarf planet in 2006.
3. What is the largest planet in the Solar System?
Ans. Jupiter is the largest planet in the Solar System. It is a gas giant with a diameter of about 86,881 miles (139,822 kilometers) and has a strong gravitational pull, which helps it capture many moons and asteroids.
4. What is the difference between a planet and a dwarf planet?
Ans. The main difference between a planet and a dwarf planet is that a planet has cleared its orbit of other debris, while a dwarf planet has not. Dwarf planets, like Pluto, share their orbital space with other objects of similar size.
5. How do comets differ from asteroids in the Solar System?
Ans. Comets are icy bodies that release gas and dust, creating a glowing coma and tail when they approach the Sun. Asteroids, on the other hand, are rocky objects that do not have a coma or tail and primarily reside in the asteroid belt between Mars and Jupiter.
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