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Effects of Human Activity on Natural Change Grade Eleven Life Science Standard Benchmark F: Grade Level Indicator Explain how human choices today will affect the quality and quantity of life on earth. Give examples of how human activity can accelerate rates of natural change and can have unforeseen consequences. Teacher Information: The structure of a forest can change based upon natural and human events. Fires are a natural component of a forest’s life. These fires can allow for forest regeneration. This regeneration can affect producers and consumers as the biodiversity changes and shifts in a region where fires have occurred. Materials needed for each group or student: Task Card 1 Task Card 2 Task Card 1: Anticipation Guide Anticipation Guide: Before viewing the Bio Bit, read each statement and decide whether you agree or disagree. Mark your understanding with an “x” in the box. After viewing the Bio Bit, record your answers based on information learned from the video clip. Bio Bit: Effect of Human Activity on Natural Change Before Viewing Agree Disagree Statement Climate change will result in a 20% increase in fire frequency. Fire can reset a forest to a younger age. After a forest fire, the biodiversity will remain the same. Fire does not change the structure of a forest. After Viewing Agree Disagree Task Card Two: 4 Point Response A student is studying a local freshwater ecosystem containing a lake, river, and tributary for a class project. This ecosystem has producers, first-level consumers, second-level consumers, and third-level consumers. A chemical enters the ecosystem and kills all of the first level consumers. Give one example of how human activity created the chemical spill. Next identify three possible consequences of the chemical entering the freshwater ecosystem. ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ Task 1 Teacher Rubric Bio Bit: Effect of Human Activity on Natural Change Before Viewing Agree Disagree Statement Climate change will result in a 20% increase in fire frequency. After Viewing Agree Disagree X Fire can reset a forest to a younger age. X After a forest fire, the biodiversity will remain the same. X Fire does not change the structure of a forest. X Task 2 Teacher Rubric 4 Points 3 Points 2 Points 1 Point O Points Clearly interprets and synthesizes the content. Accurately determines one human activity that could have caused the chemical spill in a freshwater ecosystem. Identifies 3 different consequences of the chemical spill. Good quality response and effort. May lack some details or fails to address all 4 of the points in their response. Content reflects a beginning or minimal level of understanding. Only 2 of the 4 parts to the question have been answered correctly. Lacks content understanding. Little or no effort evident. Only 1 of the 4 parts to the question have been answered correctly. No response or work completed.