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"What is a Planet?" icon

What is a Planet?

A planet is a large, round heavenly body that orbits a star and shines with light reflected from the star. Eight planets orbit the sun in our solar system. In order of increasing distance from the sun, they are: (1) Mercury, (2) Venus, (3) Earth, (4) Mars, (5) Jupiter, (6) Saturn, (7) Uranus, and (8) Neptune. Many nearly planet-sized objects, called dwarf planets, also orbit the sun. Dwarf planets include Pluto and Ceres. Since 1992, astronomers...

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Kendra Wells
Kendra Wells (Faculty)
12 years ago
The photographs and information provided in this site is easily located and navigated. Information is provided in terms students will understand. Interactive features are a bonus!
Time spent reviewing site: 20 minutes
Robin Lynch
Robin Lynch (Student)
12 years ago
This explanation of planets is well-detailed without using a lot of technical jargon which makes it more accessible to students. I think that I would easily be able to simplify the information even further to teach to the lower grades in elementary education.