This site has lots of good basic information about the solar system, particularly the planets and their moons. It is great for kids and educators. It makes learning interesting and fun for students. It provides free online lessons, which consists of packets with assignments that are designed for ages 7-11 and 12-18. This is a wonderful resource. It is also nice that it is updated and states that Pluto is no longer considered the 9th planet, but is referred to as a dwarf planet.
This website is user friendly and provides easy access for students and teachers.
Time spent reviewing site:
I spent about 60 minutes looking at this particular site.