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This lesson introduces learners to the world of nematodes (roundworms). Learners construct Baermann funnels to extract nematodes from soil and learn to differentiate stylet-bearing nematodes (most likely plant parasites) from free-living nematodes. This lesson includes background information, study questions with answers for learners, and diagrams. Dissecting and compound microscopes are required (not included in cost of materials).
- Under 5 minutes
- 1 to 7 days
- $1 - $5 per group of students
- Ages 14 - 18
- Activity, Experiment/Lab Activity, Lesson/Lesson Plan
- English
Quick Guide
Materials List (per group of students)
- conical glass (preferably) or plastic funnel, at least 100 mm in diameter
- ring stand (to hold funnel)
- flexible rubber or plastic tubing
- spring-action hose clamp
- circular piece of wire screen to fit inside top of funnel
- 2-ply facial tissue (without moisturizing lotion)
- Pasteur pipettes and bulbs
- petri plate or watch glass
- microscope slides and cover slips
- clear nail polish
- alcohol lamp
- stereomicroscope (dissecting microscope)
- compound microscope
- freshly collected soil, preferably from forest floor or garden
Subjects
-
Life Sciences
-
Diversity of Life
- Plants
- Animals
- Viruses and Bacteria
- Protists and Fungi
- Classification
- Ecology
-
Diversity of Life
-
The Nature of Science
-
The Scientific Process
- Conducting Investigations
- Formulating Explanations
-
The Scientific Process
Informal Categories
- Animals
- Nature and Environment
Audience
To use this activity, learners need to:
- see
- touch
Learning styles supported:
- Involves hands-on or lab activities
Other
Components that are part of this resource:
- Purpose and Background Information
- Materials and Methods
- Lesson Plan
- Supplemental Information and References
- Diagrams
This resource is part of:
Access Rights:
- Free access
By:
- Tylka, Gregory L. ; Jasalavich, Claudia A.
Rights:
- All rights reserved, The American Phytopathological Society, 2011