Answers to Science Questions

If your eyes respond to light, then how can you see black?

What causes bad breath? I had a bad stomach and bad breath yesterday - could they be linked?

I came back from holiday and thought it would be nice to keep the suntan topped up. Although you're advised to...

why can't you tune into TV programmes on the radio?

Can you get chocolate and cocoa disorders similar to caffeine disorders?

but she works with strong magnets - could this be a factor?

I've got really bad dandruff, what can I do about that?

my boyfriend has mouldy feet - is this athlete's foot, and what causes it?

I've got small white lumps on my face, any ideas what these might be?

What are 'birthmarks' - do they really exist?

what is the difference between a freckle and a mole?

why do we get wrinkly in old age?

I have a lot of moles on my chest and back, and they itch and bleed (after scratching most days). I've had a skin...

Is there any link between what we eat and getting itchy skin and eczema?

Why as we get older do we get brown pigmented spots on our hands, and when pregnant?

I bleached my hair recently, does bleach affect the scalp?

Why are some Animals Born with their Eyes Closed?

Why do my Dog's Eyes Shine When I Point a Light at Him?

How far down is it to the centre of the Earth?

How long until the sun is a mile in diameter?

What would happen if a bird drank fizzy water?

Why can you smell some gases, but not others?

Where does the rainbow end?

Is there an evolutionary advantage to tongue-rolling?