My family moved to Chicago from London three years ago and since then, I've lost my accent, yet Mum and Dad still have theirs. Why is this, where do accents come from, and do some people naturally pick up accents better than others?

How can active transport in plants possibly work?

We occasionally look after a dog when our friends go on holiday. We noticed that when it wees on the grass, the grass dies. However, about four or six weeks later, the grass grows back incredibly green and lush. Why?

My blood group is O-negative, my parents are Group A, and my brother is Group A. I was wondering how I came to be this blood group? I've also been told that I can give my blood to anyone else, but I can't have anybody else's. Is that right?

How do turtles stretch out their neck? What is their bone structure?

If you spill some water on the kitchen floor, it's obviously very slippery. Yet when you want to turn the pages over in a magazine, you put some water on your hands and it becomes really easy to grip!

I understand x-rays and how they work, but a couple of years ago, my son had a very serious eye injury. Over a period, it improved, but he still has split vision in the right eye. Recently we went to Addenbrooke's and they x-rayed or photographed his eye. She told us to watch they screen so we could see they eye as we went through it. First of all it looked like a sun getting redder and redder, until we got to a white little spot. She said that it was the optic nerve. How do they manage to photograph through the eye?

Why does ouzo turn milky white when water is added? It must be mainly water to start with and as the concentration of alcohol decreases, I wouldn't think that anything would precipitate out of the alcohol.