Lab: Biotic and Abiotic Factors PURPOSE: How do biotic and abiotic factors work together to support organisms in an ecosystem? RESEARCH: Students know that HYPOTHESIS: If abiotic factors are ______________ (present/absent) in the environment, then, biotic factors should be able to ____________(perish, survive) in that environment. PROCEDURE: 1. Choose a location to place your quadrant frame. Your teacher will show you where. 2. Describe the location of your mini-ecosystem quantitatively. Number of paces from the … a. North: ______________ c. East: _____________ b. West: ___________ d. South: ___________ 3. List the biotic and abiotic factors you identify in your mini-ecosystem 4. Sketch and color (appropriately) all factors listed in data table. DATA: List at least 5 of each type BIOTIC FACTORS 1. ABIOTIC FACTORS 1. 2. 2. 3. 3. 4. 4. 5. 5. Sketch: CONCLUSION: 1. Explain the difference between biotic and abiotic factors. Biotic factors are ____________________________________________________________________________ Abiotic factors are ___________________________________________________________________________ 2. Explain how biotic and abiotic factors work together to support organisms in the ecosystem. ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________