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Activity Description of "Crickets/Temp/TI-82"

Title Crickets/Temp/TI-82
Audience Grades 8-12. Biology, Life Science, Integrated Science, Environmental Science.
Abstract Students hypothesize about the relationship between the temperature and the number of times a cricket chirps per minute. They listen to a tape of crickets chirping at six different temperatures. (Tape source available in activity.) They count the number of chirps per minute and record and graph the results. Then, they listen to two more crickets chirping at unknown temperatures and record the number of chirps per minute. They use the graph to estimate the temperatures at which the crickets are chirping. They check these values using the equation T = 50 + (N-40)/4, where T represents temperature in degrees Fahrenheit and N represents number of chirps per minute. Finally, students use the graphing calculator to manipulate the data.
Author Peggy Welch
Email AEPWelch@aol.com
Unifying Concept Change, constancy, and measurement
Science and Technology Abilities of technological design
Science as Inquiry Abilities necessary to do scientific inquiry
History and Nature of Science Nature of scientific knowledge
Science in Personal and Social Perspectives
Life, Physical, Earth Sciences Behavior of organisms
Other Standards

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