Driving question : Respire plant seeds?

In this activity students investigate whether plants also respire. Most people know that animals respire but what about plants? By making use of germinating seeds, and a CO2 sensor, the respiration of plants seeds can be measured.

Topic: Plant physiology,
Concepts: Respiration,
Grade level: High School (14-18 years),
Activity type: Data logging,
Sensors: CO2 (gas) sensor (low range), O2 (gas) sensor (optional), Temperature sensor,
Interface requirements: Two analog sensor inputs,

The Student Worksheet gives investigation instructions for students.

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The Teacher Notes includes teacher commentaries such as didactical approach, exemplary questions, assignments and data analysis.

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The Science Background describes the scientific principles that underlie the activity.

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Coach Activity/Result file can be opened in the Coach 7 Program. This requires Coach 7 to be installed on your computer.

Download activity 7. Respiration of plant seeds (.cma7)