Youtube for kids is probbaly the best description for kideos. It is full of video content, both educational and non-educational content that has been screened and scrutinised by a panel that has givien it approval as a safe haven for children to access video.
Kideos goal is to empower parents to feel comfortable allowing their child to spend time on Kideos, while also making sure children have a thoroughly entertaining experience.
Kideos was created by Earlier Media, a company dedicated to providing a trustworthy destination for children of all ages to learn, watch videos and play games online.
You might want to use Kideos in the junior school as a lead in to learning activities Kideos can be accessed here.