1,060
edits
Forensic Science Investigation: Difference between revisions
From OER in Education
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* introduces the science topic ’acids and bases’ by measuring the pH of soil found on a crime suspect’s shoe. | * introduces the science topic ’acids and bases’ by measuring the pH of soil found on a crime suspect’s shoe. | ||
* introduces the technique of chromatography, by comparing the ink from a pen at the crime scene, with ink owned by a suspect. Chromatography is used in work to distinguish between mixtures and compounds | * introduces the technique of chromatography, by comparing the ink from a pen at the crime scene, with ink owned by a suspect. Chromatography is used in work to distinguish between mixtures and compounds | ||
* introduces human variation by comparing suspect’s | * introduces human variation by comparing a suspect’s thumbprint with that found at the crime scene. Fingerprinting has often been used as a starter activity for discussing what we inherit from our parents. | ||
* also introduces the topic ’acids and bases’ in an activity where pupils measure the acidity of household liquids. | * also introduces the topic ’acids and bases’ in an activity where pupils measure the acidity of household liquids and classify them as one or the other. | ||
|strategy= | |strategy= | ||
|image=Forensic1.png | |image=Forensic1.png | ||
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* to introduce the idea of acids and bases | * to introduce the idea of acids and bases | ||
* to use evidence to support conclusions | * to use evidence to support conclusions | ||
* | * probably also to introduce young students to working in a lab with a 'real' purpose | ||
|additional resources= | |additional resources= | ||
|useful information= | |useful information= | ||
