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Using CO 2 probes in the classroom - The SSERC Team

Introduce CO2 probes for teaching concepts such as cell respiration, temperature/respiration, sugars/respiration, and photosynthesis/respiration. Supported by SSERC.

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Using CO 2 probes in the classroom - The SSERC Team

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  1. Using CO2 probes in the classroom - The SSERC Team

  2. Aims • Introduce CO2 probes • - Cell respiration • - Temperature / respiration • - Sugars / respiration (not being done) • - Photosynthesis / respiration • SSERC support

  3. Based on: Delpech, R. (2006): Making the invisible visible: monitoring levels of gaseous carbon dioxide in the field and classroom School Science Review, 87 (320), 41-51. CO2 probes

  4. Based on: Measuring gaseous carbon dioxide SSERC Bulletin (2012), 238, 5-7. CO2 probes

  5. CO2 probes • CO2 detection normally: • - indirect • - conceptual difficulties • - time delay • CO2 probes: • - direct • - immediate / ‘real time’

  6. Based on: Redding, K. & Masterman, D. (2007), Biology with Vernier, Vernier Software & Technology, (Beaverton, OR 97005-2886, USA). ISBN 978-1-929075-43-0 CO2 probes

  7. Probe and software from: Instruments Direct Services www.inds.co.uk CO2 probes

  8. CO2 probes

  9. Operation • Connect probe to Go!Link and then to laptop • Load ‘Logger Lite software’

  10. Found in ‘Experiment Menu’

  11. Press ‘Collect’

  12. Press ‘Stop’

  13. Under Options/ Graph Options

  14. Linear fit from ’Analyse’ menu

  15. Costs • Vernier Go!TM Link (VR105440) . Single-channel interface includes software = £66 [+ VAT] • CO2 gas sensor (VR105512) = £268 [+ VAT]

  16. How might we help? • The SSERC suitcase

  17. How might we help? • The SSERC suitcase: • 6 CO2 probes • 6 interfaces • Copies of practical sheets

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