Forensic Science Book 2

Name: Forensic Science Book 2
SKU: 51068
Price: 44.95 NZD
Availability: InStock
ISBN: 9781776555147

CSI activities to engage learners

Forensic Science Book 2 supports the subject at senior secondary level. The resources needed for its activities are available in a high school science laboratory or else are easily sourced.

Ages: 15-18 | Pages: 68 | Code: 51068 | ISBN: 9781776555147

Series: Forensic Science

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David Winter

Dr David Winter is a lecturer in science education at the University of Canterbury, Christchurch, New Zealand. For many years he was a forensic scientist with the Institute of Environmental Science and Research (ESR), performing a variety of forensic examinations for the New Zealand Police, including the toxicological analysis of post mortem specimens. He has presented scientific evidence on numerous occasions in the District Courts and the High Court, played a significant role in forensic laboratory accreditation and quality assurance and has developed and delivered training programmes for police and customs officers.

Chris Astall

After gaining a PhD in marine biology in 1992, Dr Chris Astall trained to become a primary school teacher and taught in schools in both the United Kingdom and New Zealand. Since 2008 he has been a senior lecturer in science education at the University of Canterbury, in Christchurch, New Zealand, a role that involves working with many schools throughout the country. In 1999 he was awarded the prestigious Royal Society (UK) Millennium Fellowship for his community science development project “Saturday Science and Technology”. His current research interests include the use of ICT in science education, the development of nature of science through children’s literature and exploring how schools can develop sustainable science practices. He has presented nationally and internationally and has facilitated numerous workshops, through science conferences and consultation work.

Contents
Introduction	4
Important note: Health and safety disclaimer	4
Curriculum links	4
1. The nature of forensic science	6
The scientist as an expert witness	6
How reliable is forensic evidence?	7
Find out more	9
Useful web links	9
Forensic rulers	9
2. Lights on or off?	11
Forensic focus	11
Activity: Performing a lamp examination	15
Activity: The role of inert gas in protecting the filament	16
Find out more 18Useful web links	18
3. Hidden numbers	19
Forensic focus	19
Activity: Restoring serial numbers by acid etching	21
Activity: Stamped serial number restoration by heat treatment	23
Find out more	24
Useful web links	24
4. Glass fracture patterns	25
Forensic focus	25
Activity: Impact testing	28
Find out more	29
5. A spectrum of possibilities	30
Forensic focus	30
Activity: Building a Lego spectrophotometer	34
Activity: Analysis of food colourings	38
Infrared spectroscopy	39
Find out more	40
6. Thin-layer chromatography	41
Forensic focus	41
Activity: Making sample applicators	43
Activity: Making TLC plates	44
Activity: Applying samples, developing the TLC plates and visualisation	45
Find out more	46
7. Poisons, medicines and drugs	47
Forensic focus	47
Activity: Spot tests	54
Activity: Thin-layer chromatography with common medicines	55
Activity: Making oil of wintergreen	57
Activity: Extracting caffeine from tea	58
Find out more	59
8. Don't play with matches	60
Forensic focus	60
Activity: Using steam distillation to collect ignitable liquids	63
Activity: Analysing the distillate by thin-layer chromatography	65
Find out more	67