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50 Years of ERIC
50 Years of ERIC
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Peer reviewed Peer reviewed
ERIC Number: EJ551202
Record Type: CIJE
Publication Date: 1997
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0045-0855
To Determine the Percentage of Copper in a Brass Screw Using a Computer Interface with a Colorimeter.
Horgan, Joan; Hedge, Robyn
Australian Science Teachers Journal, v43 n2 p40 Jun 1997
Year 11 students investigated the real-world problem of whether screws are really brass. It allowed them to use the colorimeter and computer interface in a way that was easily understood and models normal practice in testing laboratories. Screws were dissolved in nitric acid and their absorbance of red light was compared with a standard curve. (PVD)
Descriptors: Chemistry, Computer Interfaces, Computer Uses in Education, Foreign Countries, Hands on Science, High Schools, Laboratory Equipment, Laboratory Experiments, Laboratory Procedures, Science Education, Teaching Methods
Publication Type: Guides - Classroom - Teacher; Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Australia; Colorimetry; Screws