GCSE Physics (OCR A)
Topic Summaries
Space
The Solar System
- The solar system consists of:
- A star, orbited by planets, called the Sun, which releases energy to its surroundings.
- Four planets close to the Sun made from rock: Mercury, Venus, Earth and Mars.
- Five planets further from the Sun made of gas: Jupiter, Saturn, Uranus and Neptune.
- Dwarf planets further from the Sun, including Pluto.
- Moons that orbit planets.
- The Sun is part of a group of over 200,000 million stars in the Milky Way galaxy.
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