The summer holidays are almost over, and with two more weeks of freedom the kids are bound to be getting bored before school starts up again! Worry not, as we have got a list of things to fill a few days in Liverpool, from food to things to do and see. If you're on a budget, all the museums in Liverpool are free to enter. The World Museum has five floors full of interesting stuff, such as dinosaurs, insects, an aquarium and a planetarium, so there's definitely going to be something to keep everyone in the family interested. Just up…