Here are links to some search websites that are specifically designed for children to use.
Google Junior: https://www.googlejunior.com/
Simple Wikipedia: https://simple.wikipedia.org/wiki/Main_Page
DK Findout: http://www.dkfindout.com/uk/
Counselling Directory is a confidential service that encourages those in distress to seek help. The directory contains information on many different types of distress, as well as articles, news, and events. Take a look at their E-Safety/Staying Safe Online page for some more top tips on having the safest online persona: