Google "DK find out" if the following link won't work https://www.dkfindout.com/uk/
This is a fantastic encyclopaedia type website where you can find out about everything and anything. go on take a look.
This is a great resource with video clips and a quiz to make sure you use the internet safely and know what to do if you come across anything suspicious or anything that worries you. Remember - TELL A TRUSTED ADULT
Purple mash https://www.purplemash.com/
remember to use Purple Mash to practice your maths, English and science skills