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We ran seven talks for the second time in 2013.

The talks were again very well attended, and in-between the crashes and bangs, there was a lot ofopportunities for the audience to participate!

David Bebb, a veteran of CHaOS, who works forthe Cambridge Science Centre, gave a talk entitledWater: the weird and wonderful wet stuff.

Nunu Taoand Raghd Rostom, undergraduateNatural Sciences students, investigated theproteins, DNA and other strange and excitingthings found inside cells.

Sonja Dunbar, a biochemistry PhD student andbroadcaster for the online science magazineSciCam, gave an interactive talk about food chains.

Lia Chappell, a PhD student at the SangerInstitute and president of the CambridgeUniversity Outreach Network, gave two talks:Arewe alone? andParasites: unwelcome visitors in your

body, using possibly the largest microscope slideever seen in the Zoology Department!

Lia Chappell and Philip Garsed, a PhD student in

the Engineering Department, gave a talk aboutcryptography and explained the fundamentals ofthe internet using paper aeroplanes.

Will Benfold, an undergraduate studying physicsat Downing College, gave a talk includingtornadoes and a giant capacitor!

CHaOS talks at Crash, Bang, Squelch!

New for 2013!An experiment to test sugar concentration in fakeblood samples using a blood glucose meter, andlearn about the different types of diabetes.

A demonstration about different blood groups

and why it is important to match blood fortransfusion.

An experiment to demostrate how urinalysistests

are used to diagnose diseases such as urinary tractinfections and kidney stones.

A set of mind-bending prism gogglesto showhow well our brains can adapt to new sensoryinputs.

We also hosted a visiting computer science

experiment demostrating programming using aRaspberry Pi microcomputer.

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The kids love the big bangs and anything gooey.

We learned so much!

We really liked the enthusiasm of most ofthe demonstrators and their ability to relateexplanations to different ages and abilities.

More sand please so a person can float in it!And more fire!

Its fantastic. Very enjoyable, thank you!

We thought it was excellent and will be back infuture years as our child gets older.

The variety and number of experiments is greatand is pitched at the right level for ages of kids.

We would like to thank CHaOS for such afantastic event!

Can we re-book now for next year?

160 groups of visitors filled out a questionnaire aboutCrash, Bang, Squelch! Heres what they told us:

76%

FANTASTIC ENJOYABLE

24%

The event was:

93%

ABOUT RIGHTTOO DIFFICULT TOO EASY

4%

The experiments were:

86% 13%

A LITTLEA LOTNOTHING

NEW

We learnt:

33% 50% 10%

1 h30 min 3 h

We stayed for:

What did our visitors think?

of families hadbeen to the event

in a previous year

32%

of respondents

said they wouldcome again

100%

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The CHaOS committee would like to thank:

The University of Cambridge Department ofZoologyfor allowing us to use their lab and lecturetheatres.

Neal Maskell, Nanna Evers,Ian GoldstoneandSusie Wan in the Department of Zoology for alltheir help and support in the run up to and duringthe event.

Tarun Kumar in the Department of Zoology andHarry Druiffin the Department of Physics for their

help with experiments.

Neil Stanford for electrical safety testing all theCHaOS equipment.

The Cambridge Science Festival teamfor all oftheir help with organisation and publicity.

The Science Festival stewards who helped uskeep visitors moving smoothly and their numberssteady throughout the day.

All of the student volunteerswho gave up theirtime to be part of the event.

Everyone who came as a visitor!

Crash, Bang, Squelch! 2013 was kindly sponsored by:

www.chaosscience.org.uk