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Bacteria
Living in Extreme Environments

hook | data | resources | main | student

Author Contact Information

Glenn Zwanzig, duPont Manual High School, Louisville, KY 
szwanzig@iglou.com

Overview

  • Students will learn how to formulate their own experimental questions and test those questions.
  • Students will learn sterile technique.
  • Students will gather and analyze data collected from their experiments.
  • Students will propose ideas/questions for further experimentation. Students will develop and improve their communication skills as they present their results to their peers.

    Grade Level/Discipline
    Grades 6-12
    Biology, Life Science, Ecology

    National Standards
    Content Standard A: Grades 5-8 and 9-12, Science as Inquiry
    Content Standard C: Grades 5-8 and 9-12, Life Science

    Pre-activity set-up
    The teacher will need to prepare sterile nutrient agar plates and tubes of nutrient broth prior to the start of class.

    Materials
    Each group of students will need several sterile nutrient agar plates and tubes of sterile nutrient broth. The numbers will depend on the number of diffent and trials temperatures used in the experiment.

    Time Frame
    The activity will take a minimum of 4 days.

    Engagement and Exploration (Student Inquiry Activity
    As a class, students should spend half a class period discussing bacteria, its characteristics, and its life cycle. It will work best if students have already studied bacteria. The second half of the class period should be spent in groups developing their methodology for the lab.

    Explanation (Discussing)
    Each group of students will explain their results to the class noting anything unusual or unexpected.

    Elaboration (Polar Applications)

    Exchange (Students Draw Conclusions)

    Evaluation (Assessing Student Performance)
    Students will write lab reports that detail each step of the experiment. Lab reports should follow a basic format of: Introduction - gives background information; Methodology - how they did the experiment; results - what they got (graphs, charts, data, etc); and Conclusion - why they got the results they saw, noting reasons for anything unusual or unexpected.

    hook | data | resources | main | student