When we're out in the bars and people want to be funny (or annoying) people use the bottom of their beer bottle to tap the top of someone else's bottle. This makes the victim's beer fuzz up and overflow. Can you tell me the science behind this please?

Can you tell me how carbon dating works?

I want to know why you get brain freeze when you drink an icy drink.

I have some frogs in my garden and they come up to me and let me tickle them. Why is this?

Why are most plants green? Sure, it's because chlorophyll rejects green light, but why does it? The green part of the spectrum is the most intense and it seems like a waste to reject it.

Are there any advanced and complex multicellular animals that have chloroplasts inside their bodies or under their skin?

Can you please explain why some pinot grapes turn into great wines and some don't. Is it down to soil chemistry for example?

I've been hearing a lot about when you get frost on your car first thing in the morning and people saying that it's the dawn dip. Before it gets light there's no frost and after the sun comes up there's frost on the windscreen. What exactly do they mean by the dawn dip?

If clouds are made up of water, why do they differ in colour, from fluffy white to dark and black?

Given that as altitude increases, temperature decreases, does this means that when precipitation falls from clouds it usually falls as snow or sleet or hail at altitude and then melts and warms as it gets nearer the Earth?

Do fish fart, and if so, where do they come from because you don't see any bubbles?

Why do French beans squeak when you eat them but runner beans don't?

My friend and I went to give blood the other day and were curious about how the body knows that it's a pint short so it can make more blood cells.

As light from other galaxies takes so long to reach us, can we be sure that any of them are still there?

My wife was out on Friday evening and noticed that the Moon was much larger than normal. Is there a reason for this?