Here is some extra reading - you can read and then complete the questions in your books - then mark them using the answers. Be careful though, there are 3 levels - easy, medium and hard - designated by stars at the bottom of the page so if you want the hard version you'll have to scroll down a bit.
The Pearl Harbour one comes with a disclaimer as it's about an event during WW2 when lots of people lost their lives. I know we've studied WW2 and I'm confident you will all be very sensible and respectful when reading this but you may want to ask your parents or leave it out altogether in case it upsets you. Miss Wood