582660
9780924886348
Student sleuths are challenged to determine which of several black pens was used to write a ransom note. Using paper chromatography, students explore the concepts of solubility, pigments, and separation of mixtures. Several mystery scenarios are suggested with intriguing characters. In a special additional mystery, students use "candy chromatography" to solve a crime.Barber, Jacqueline is the author of 'Crime Lab Chemistry Grades 4-8' with ISBN 9780924886348 and ISBN 092488634X.
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