These are fab! Not sure about the dodgy 'scientific' answer to the why girls like pink one though.... er, traditionally IN OUR CULTURE girls like pink. Also they missed out the most important contemporary one, 'Why has Kerry on CBeebies only got one arm?'
Oh and the two dads one.... in my dd's case one of her friends has two mums because his dad decided he felt happier as a mum. This makes perfect sense to dd who thinks girls are better than boys anyway.
Leaves are green because they contain chlorophyll which is a pigment that absorbs all the light spectrum except the green and harnesses the light in an energy conversion reaction that results in "food" for the plant.
I think the reflections in puddles occur due to the surface tension of the puddle and the angle of refraction of the light that bounches off the surface.
1. Because they're made of green things 2. Because animals aren't as clever as us. That's why we have clothes/houses/stand on 2 legs. 3. It's like a photo. They aren't in the t.v., someone took a moving photo of them and put it there. 4. Because it's dark and shiny??
Why do people walk on two legs and dogs and cats and cows need four?
<creationists look away>
Because people have thumbs. Before people looked like people, they walked on four legs. Then one day they realised they had thumbs and were able to grab tools [look, you can grab a pencil and hold it properly with your fingers and thumb, but the closest any other animal comes to holding a pencil is like the way you can hold it with your toes!]. Now that humans could use tools, they needed to keep their hands free so they stopped walking on their arms and just used their legs.