I would highly recommend this series for your child. The knowledge is presented with a lot of graphics and high level statements nothing that makes it boring. The series is really fun to watch, you two will really enjoy it. They do have one episode that talks about threats to earth, so you will definitely want to watch that one her as it is a lot to take in at 7 years old.:)
Slashdot Mirror
I would highly recommend this series for your child. The knowledge is presented with a lot of graphics and high level statements nothing that makes it boring. The series is really fun to watch, you two will really enjoy it. They do have one episode that talks about threats to earth, so you will definitely want to watch that one her as it is a lot to take in at 7 years old. :)