Chan Hon-kit, nine Weight: 37kg Bag: 8kg 'I try and only take what I need, but still I have lots of books and my bag is heavy. Apart from books, I also have two pencil cases - one for my pens and pencils, the other for the correction liquid I use. I also carry a bottle of water which is quite heavy. It takes me about 15 minutes to walk home from school, and my back is sore by the time I get there.' Yu Ho-fung, 11 Weight: 40kg Bag: 4.5kg 'My bag is very heavy. Apart from books, I also have my pencil case, my wallet, and a water bottle. I know that it's bad for my back to carry such a heavy bag. I try and make sure my back is upright although it's easier to hunch forward - but that's unhealthy. It takes me about 20 minutes to walk from home to school. My mum reminds me most mornings to pack only the books I need, but sometimes I'm scared that I'll get told off by teachers if I leave anything behind.' Mandy Yun and nephew Tony Yeung Ka-ming, nine Weight: 37 kg Bag: 4.5kg Ms Yun:'He has so many books and his bag is so heavy that he's becoming a hunchback. I help him carry his bag sometimes and remind him to stand up straight frequently but he forgets straight away and goes back to hunching his shoulders. He should not need to carry so many books around.' Tony:'I don't listen to her .. I am capable of carrying my bag. I don't think it's that heavy and I don't have a hunchback.'