1) Which one of these is a quantitative measurement? a) Litmus paper b) UI paper c) pH probe 2) Which one of these is a semi-quantitative measurement? a) Litmus paper b) UI paper c) pH probe 3) Which one of these is a qualitative measurement? a) Litmus paper b) UI paper c) pH probe 4) Identify the ways that information may be collected from a crime scene a) Painting b) Photographs c) Word of mouth d) Drawing e) Written description 5) Why are scientific laboratories given accreditation? a) They make the most money b) They meet the required standard c) Their results are unreliable 6) How do scientists check the quality of their work? a) Proficiency tests b) Standard procedures c) Reference samples 7) Which method is used to identify chemicals in mixtures? a) Colorimetry b) Electrophoresis c) Chromatography d) Microscopy 8) Which method is used to measure the concentration of a coloured chemical? a) Colorimetry b) Electrophoresis c) Chromatography d) Microscopy 9) Which method is used the see things which are too small? a) Colorimetry b) Electrophoresis c) Chromatography d) Microscopy 10) Which method is used to separate DNA? a) Colorimetry b) Electrophoresis c) Chromatography d) Microscopy 11) Rf = distance moved by chemical / distance moved by solvent a) True b) False 12) A microscope with a low resolving power can identify details which are very close together a) True b) False 13) Who would work in the law enforcement sector? a) Forensic scientist b) Environmental protection officer c) Public analyst 14) Who would work in the consumer health and safety sector? a) Forensic scientist b) Environmental protection officer c) Public analyst 15) Who would check for pollution in the air, land and water? a) Forensic scientist b) Environmental protection officer c) Public analyst

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