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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.

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Peer reviewed Peer reviewed
ERIC Number: EJ317426
Record Type: CIJE
Publication Date: 1985
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
Early Adolescence: Celestial Meetings - Synodic Periods.
Science and Children, v22 n7 p41-42 Apr 1985
Rather than memorize numbers for sidereal periods of planets (time to orbit the sun), students can learn to determine these times through simple calculations. Comparison of a planet's synodic period to earth's year of 365 days is made, then multiplication to derive a full circle of 360 degrees establishes the sidereal period. (DH)
Descriptors: Astronomy, Earth Science, Junior High Schools, Science Education, Science Instruction, Secondary School Science, Space Sciences
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: Teachers; Practitioners
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Planets