Science/Strand III/Content Standard 5/High School/Benchmark 3
Benchmark Question: How do general factors regulate
population size in an ecosystem?
Focus Question: How does competition affect the
carrying capacity of a population?
Students will write
predictions of the effects of crowding on the growth of seedlings. In small
groups, students will design and carry out an experiment that compares
trays with different densities (concentration equally distributed) of
plants (e.g., radishes). Students will observe the affects of crowding on
the different populations of plants and the abiotic factors for which the
plants were competing (e.g., light, water, nutrients, etc.).