Answers to Science Questions

‘When I exhale there are carbon atoms in my breath, how long ago were they in my food or drink?’

Are they the same age? How do we know?

Why are some people fertile but can't produce offspring with their partner?

Kit Chapman sniffs out an answer to this chemical query...

And how does water get all the way to the top?

And if so, how? Physicist Ben McAllister explains all...

Kit Chapman from Chemistry World took on this chemical query from listener David.

And if so, why?

Plant ecologist Howard Griffiths answered this blossoming question from listener Sarah

And what are the advantages and disadvantages of using nuclear power?

And how does the pill work? It's over to reproductive physiologist, Bill Colledge...

Where is that energy coming from? Chemistry World's Kit Chapman explains...

Is it as simple as "anything I don't want growing there"?

How come you can't see faint stars when you look directly at them?

What do antidepressants do in the brain?

What's the most powerful acid we've ever found?

What's in the Earth?

How would we do space surgery?

What makes someone schizophrenic?

How do we make new molecules?

How do we know how old the Earth is?

What separates anxiety from a disorder?

What makes a battery go?

How long did it take for the dinosaurs to die?