Fun with Forensics Why forensics Its fashionable Its
Fun with Forensics
Why forensics? • • It’s fashionable It’s engaging for pupils It’s fun A great way of bringing science into the classroom
Aims for today • To provide practical activities to use in the classroom. • To raise awareness of scientific inquiry (fair “enough” testing). • To look at cross-curricular links within Cf. E.
Today we will • test white powders – solubility. • test a selection of pens – chromatography. • make a good impression – dental. • make a good impression – fingerprints.
Activity 1 White solids
Curriculum for Excellence Experiences and Outcomes I can make and test predictions about solids dissolving in water and can relate my findings to the world around me. SCN 1 -16 a By investigating common conditions that increase the amount of substance that will dissolve or the speed of dissolving, I can relate my findings to the world around me. SCN 2 -16 b
Each group has: • 6 sample bottles of water. • 6 sample bottles of vinegar. • 6 labelled white solids. • Results sheets (1 each). • Teaspoons. • Hand lenses. • Black paper. • Instructions.
Activity 2 Chromatography
Curriculum for Excellence Experiences and Outcomes I have participated in practical activities to separate simple mixtures of substances and can relate my findings to my everyday experience. SCN 2 -16 a
Each group has: • 1 bottle of water. • Dropping pipettes. • Instructions. Each person has: • Square of kitchen towel. • Labelled pen.
Activities 3 & 4 Curriculum for Excellence Experiences and Outcomes I can identify and classify examples of living things, past and present, to help me appreciate their diversity. I can relate physical and behavioural characteristics to their survival or extinction. SCN 2 -01 a
Activity 3 Taking a dental impression
Polystyrene cup In class you may be able to get up to 5 suitable pieces from each cup. Each person needs 2 pieces – one for their top teeth and one for their bottom teeth.
Each person has: • Two sections of polystyrene cup. • Record sheet. • Polythene bag which seals. Each group has: • Wax crayons. • Instructions.
Activity 4 Taking fingerprints Each person has: • Pencil. • Recording sheet. Each group has: • Sellotape. • Scissors.
Pencil method. • Rub your pencil on a small area of paper until you have a thick layer. • Rub your finger over this layer. • “Print” onto clear sticky tape. • Place the tape onto the recording sheet.
Fingerprints fall into 3 main categories Look like ears Look like spirals
The groups can be subdivided
fingerprints classification
Contact details: sts@sserc. org. uk Hayley. sherrard@sserc. org. uk
Resources available on new SSERC website http: //www. science 3 -18. org/sserc
Resources available on new SSERC website
Resources available on new SSERC website
Resources available on new SSERC website
Resources available on new SSERC website
Resources available on new SSERC website
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