Global warming, icebergs meting?

I was asked this a while ago, and then again today. Basically the question is "If global warming is causing the icebergs to melt, and 95% of an iceberg is below the water already, then how can this cause sea levels to rise so much?"

Are mushrooms fruit or veg?

Well, neither really. Like Truffles, mushrooms fall under the category of fungi. This is because truffles are subterranean mushrooms (Fungus Tuber Ascomycetes Mycota - or sac mushroom to you and me).

Do you need to know more?

Why is the sky blue?

This is quite a cool question asked by my 8 year old daughter. Parties can't swing without it, we can't survive without it, and blue skies would be black and spotty without it: Atmosphere. In short, the blue sky is caused by particle diffraction. The air we breathe is made of molecules of common substances; nitrogen and oxygen being the main constituents. Light hits some of these molecules bouncing off in another direction and some is absorbed - both changing the colour slightly.

The rest of the explanation is pretty dull, so only carry on if you're made of stern stuff. First, here is some South African Blue sky for you. It's Pilgrims Rest in the Low Veld - A lovely place if you're visiting.