Ecosystems are affected by a variety of factors. Biotic factors are the living components of an ecosystem. Abiotic factors are the nonliving components of the ecosystem. The organisms in an ecosystem are influenced and affected by this combination of biological and physical factors. Together these factors determine the survival of organisms and the general health of the ecosystem. In this lab, you will determine how two abiotic factors affect the germination of 2 different seeds.
PLEASE NOTE: This product is also sold in a complete unit plan bundle of products called Introduction to Ecology Complete Teaching Unit Plan Bundle of Products
1. To determine the effect of certain abiotic factors on the germination of seeds.
2. To describe the relationship between biotic and abiotic factors.
Materials: Radish Seeds, Rice Seeds, Potting soil, Sand, Graduated Cylinder, Plant growth containers (ice trays), Masking tape
I use this lab during this unit: Introduction to Ecology PPT and Notes
This lab will take one day to set up and complete the first set of questions. Subsequent days will be needed to make observations on seed germination. It should only take 15 minutes each observation day.
The questions are of varying difficulty levels. Many of the questions are basic and concrete in nature, but many of the questions involve critical thinking and problem solving skills.
Extensive teacher pages are included. These pages include tips for setting up the lab, where to get supplies, and answers to all questions found on the student pages.
This lab is appropriate for any biology or life science class with students in grades 6 - 10.
You will receive both a Word document as well as a PDF of the lab.
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