Investigating Factors Affecting the Breathing Rate of a Locust

Do animals breathe faster when given more oxygen or more carbon dioxide? Young scientists observe the respiration rates of locusts under a variety of gas concentrations to answer that very question. They collect data, analyze the results, and discuss their conclusions.

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CCSS: Adaptable
Instructional Ideas

  • Review safety practices when working with live animals and the procedures to ensure the animals are not harmed
  • Link the discussion to changes in the concentration of oxygen in the air throughout the history of the planet
Classroom Considerations

  • Requires live locusts, oxygen generator, and carbon dioxide generator
Pros

  • Connects science and math concepts
  • Includes teacher tips throughout the lesson
Cons

  • None