Grade 08 Science - EC: S8.A.3.1.4
Grade 08 Science - EC: S8.A.3.1.4
Continuum of Activities
The list below represents a continuum of activities: resources categorized by Standard/Eligible Content that teachers may use to move students toward proficiency. Using LEA curriculum and available materials and resources, teachers can customize the activity statements/questions for classroom use.
This continuum of activities offers:
- Instructional activities designed to be integrated into planned lessons
- Questions/activities that grow in complexity
- Opportunities for differentiation for each student’s level of performance
Grade Levels
8th Grade
Course, Subject
Science
Related Academic Standards / Eligible Content
Activities
- Why won’t a bulb light up if it is part of an open circuit?
- How are an open loop system and a closed loop system similar? How are they different?
- Gwen said that a food web is a closed loop system because the top level consumers eventually die and decay which helps create nutrients for the producers. Do you agree or disagree with her statement? Explain your reasoning.
Answer Key/Rubric
- Acceptable responses may include, but are not limited to:
- A circuit needs to be closed in order to allow electricity to flow through it.
- If the circuit is open, the flow of electricity will stop.
- Therefore, if the circuit is open a light bulb will not receive any electricity, so it will not light up.
- Acceptable responses may include, but are not limited to:
- Both require input.
- Both perform a function.
- Both produce output.
- A closed loop system receives feedback. An open loop system does not.
- A closed loop system will use feedback to alter its system process.
- An open loop system will perform the same system process all the time.
- Acceptable responses may include, but are not limited to:
- Gwen is incorrect. A food web is an open loop system.
- An open loop system does not use feedback to alter its processes.
- The output of a food web does not become the input of a food web.
- Sometimes parts of an open loop system can be removed and others can be added.
- Organisms in a food web can be removed, or new components can be added.
