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Grade 07 Science - EC: S7.C.2.1.2

Grade 07 Science - EC: S7.C.2.1.2

Continuum of Activities

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

7th Grade

Course, Subject

Science

Activities

  1. What does the Law of Conservation of Energy state?
  1. A television uses electrical energy to function.  Explain how this electrical energy is transferred and conserved when the television is turned on.

  2. Use the energy pyramid below to summarize how energy  would be transferred from the sun to a dolphin.

  1. How is potential energy related to kinetic energy?

Answer Key/Rubric

  1. The Law of Conservation of Energy states that the total amount of energy within a system remains constant.  The energy is can be transferred or changed into a different form, but more is not created, and it is not destroyed.
  1. Acceptable responses may include, but are not limited to:
    • Television uses electrical energy to function.
    • The television changes the electrical energy into different forms when it is turned on.
      1. Light
      2. Sound
      3. Heat
    • The amount of energy in this closed system remains constant.

  2. Acceptable responses may include, but are not limited to:
    • The sun helps the phytoplankton to grow and make its own food.
    • The phytoplankton uses the sun’s energy to perform its bodily functions.  Some of the energy is lost as heat energy.
    • The remainder of the phytoplankton’s energy is given to the zooplankton when it eats the phytoplankton.
    • The zooplankton uses most of the phytoplankton’s energy to fuel its bodily functions.  Some of the energy is lost as heat energy.
    • The remainder of the zooplankton’s energy is given to the small fish when it eats the zooplankton.
    • The small fish uses most of the zooplankton’s energy to fuel its bodily functions.  Some of the energy is lost as heat energy.
    • The remainder of the small fish’s energy is given to a larger fish when it eats the small fish.
    • The large fish uses most of the small fish’s energy to fuel its bodily functions.  Some of the energy is lost as heat energy.
    • The remainder of the large fish’s energy is given to a dolphin when it eats the large fish.
  1. Acceptable responses may include, but are not limited to:
    • Potential energy is stored energy.
    • Kinetic energy is the energy of movement.
    • An object has potential energy if it is not moving.
    • When the object begins to move, the potential energy is transformed into kinetic energy.
    • The sum of potential and kinetic energy always remains the same.
    • When the object’s motion begins to slow, the kinetic energy is transformed back into potential energy.
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