What age range/year groups/key stages are the Fact Force lessons suitable for?

The Usborne Fact Force lessons are created for primary school-aged children 8 years and over. 
That’s UK Key Stage 2: year 4 and upwards in England and Wales, and year P5 and up in Scotland. 

However, at Usborne we believe that children can understand anything if explained in the right way, so if you teach younger children and want to show them an Usborne Fact Force event, please do!