Answers to Chemistry Questions

How do they work?

And why is it STILL on my walls?

They're not necessarily hot...

Is it JUST H2O?

Chemist Pether Wothers takes a sniff at this question from a listener

Could we eat aliens?

Do we need to start panicking, or what?

And if so, how much light do we need?

How can chemicals create fire?

SPOILER: There may be "whale vomit" in your perfume.

Alexandra Ashcroft recruits Vayu Maini Rekdal to cook up an answer to Zettie's question

Mathematician James Grime quizzed the rest of The Naked Scientists Q&A show panel...

It's all about the ions...

How much of an effect do the different types of pollution face masks have?

Is the frozen water on the Moon, Mars or anywhere else in space drinkable?

Normally, when stuff collides, things fly apart from each other. So how did planets form in the first place?

Seats are weighty, but would it make much of a saving?

Water contains hydrogen and oxygen, both of which are important in combustion, so why is it used to put out fires?

Why don't you get thrown backwards when you switch on your torch? Kerstin Göpfrich found out from Dr Anna Lombardi.

Could the testing of nuclear bombs lead to earthquakes?