Crash, Bang, Squelch! 2013

Crash, Bang, Squelch! 2013 will be happening on Saturday 16th March 2013 (the first Saturday after the end of Lent Term).

How to sign up

Sign up is very simple - just fill in the webform on this page.

More about CHaOS and Crash, Bang, Squelch!

**What is CHaOS?**
Cambridge Hands-On Science (aka CHaOS) is a student society which aims to show children (and their parents) that science can be fun and exciting, and something that they can understand. We're run by an enthusiastic student committee and get help running our events from lots of enthusiastic undergraduate and postgraduate demonstrators.

**CHaOS needs student volunteers**
We're now recruiting volunteers for our biggest annual event, "Crash, Bang, Squelch!"- this is a huge hands-on science day that we run during the Cambridge Science Festival. We'll be taking over the Zoology Department in the New Museums site (right next to the whale) on Saturday 16th March. We'll have lots of our own exciting experiments, and we'll need lots of enthusiastic student volunteers to help demonstrate them to the public. Saturday 16th March is after the end of lectures, so you can have great fun helping out without worrying about work!

**What exactly does it involve?**
We've got a huge number of hands-on experiments that we've designed to demonstrate interesting scientific principles. You might find yourself demonstrating how bridges stay up, why some things glow in the dark or even introducing children to Boris the skeleton. The ideas are simple, but with enthusiastic and interested demonstrators we can show children that science isn't a 'boring' subject.

You can choose to demonstrate in the morning or afternoon, but if you choose to do the whole day we'll provide you with a free lunch (whoever said there was no such thing?). Even better, there is a free party after the event for all those who help!

**I've never done anything like this before... will I be any good?**
No experience is necessary, and every year we have loads of people who haven't done CHaOS before. If you're a scientist (including mathematicians, vets, medics, engineers, compscis,...) you already know more than enough to demonstrate. The experiments have descriptions to explain the science and if you are unsure you can always ask one of the many committee members. We'll also run several briefing sessions just before the event so you know exactly how everything will work on the day.

**Sounds great! How do I sign up?**
The sign up page is linked at the top of this page. You will be able to select which experiments you want to do before the event, and there's lots of other information about CHaOS and the experiments on the rest of our demonstrator website ( please have a look to find out what we do! Also, why not get your friends to sign up too?

If you've got any questions about Crash Bang Squelch! please get in touch with us at

If you want to see pictures of last year's event, our report of what happened at Crash, Bang, Squelch! 2012 can be downloaded here

[Note: In previous years people have confused Crash, Bang, Squelch! and other Science Festival events, some of which also happen on Saturday 16th March. Obviously we think Crash, Bang, Squelch! is the most fun, but it makes everyone's life easier if you make sure you're not double booked!]