NotesFAQContact Us
Collection
Advanced
Search Tips
50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

Learn more about the history of ERIC here. PDF icon

Back to results
Peer reviewed Peer reviewed
ERIC Number: EJ423624
Record Type: CIJE
Publication Date: 1991
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0036-8555
Our Two Cents Worth.
Corcoran, Tim; Allen, Bill
Science Teacher, v58 n2 p18-20 Feb 1991
Described is an activity in which students determine the percent composition of zinc and copper in pennies minted before and after 1982. Students also use pennies to show the natural relative abundance of isotopes and to explain how the weighted atomic mass of the elements is determined. (KR)
Descriptors: Chemical Analysis, Chemical Reactions, Chemistry, Laboratory Procedures, Metallurgy, Science Activities, Science Education, Scientific Concepts, Secondary Education, Secondary School Science
Publication Type: Journal Articles; Guides - Classroom - Teacher
Education Level: N/A
Audience: Teachers; Practitioners
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: N/A