Why is blood red Why are carrots orange Who invented the lightbulb Why is the world going green Is the sky really blue And what is ultraviolet lightYoull discover the answers to these questions and many more in this incredible collection of scientific facts about colour. Well talk about light the most important thing and waves not the kind you see at the beach though you will learn why the sea looks blue. Youll find out how some animals are able to glow in the dark and how others change their colours to hide from predators.Keep reading to discover why leaves change colour in the autumn why your veins look blue but your blood is red and how the language we use shapes the colours we see . . .And youll even be taught by a real astronomer Dr Sheila Kanani exactly how to make a rainbow in space.