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Massachusetts Comprehensive Assessment System

2014, Grade 5 Science and Technology/Engineering

  Question 9: Open-Response  
Mark built an incomplete circuit with a light bulb, as shown below.
The picture shows a battery on the left. A wire goes from the battery to one side of a light bulb socket at the top of the picture. Another wire comes from the other side of the light bulb socket to the bottom of the picture. There is a light bulb in the socket. Another wire comes from the battery to the bottom of the picture. There is a space at the bottom of the picture between the wire from the light bulb and the wire from the battery.
He wants to test whether objects are conductors or insulators of electricity. Mark is going to test the objects listed below.
  • copper nail
  • glass lens
  • steel spring
  • wooden block
  1. Identify each object from the list as a conductor or insulator of electricity.
  2. Identify what will happen to the light bulb when each of the objects is placed in the circuit.
  3. Explain why conductors and insulators produce the results you identified in part (b).

Scoring Guide and Sample Student Work
Select a score point in the table below to view the sample student response.

ScoreDescription
4 The response demonstrates a thorough understanding of objects and materials that are electrical conductors or insulators and how circuits require a complete loop through which an electrical current can pass. The response correctly identifies each object from the list as a conductor or an insulator of electricity. The response correctly identifies what will happen to the light bulb when each of the objects is placed in the circuit and clearly explains why conductors and insulators produce these results.
4
3 The response demonstrates a general understanding of objects and materials that are electrical conductors or insulators and how circuits require a complete loop through which an electrical current can pass.
2 The response demonstrates a limited understanding of objects and materials that are electrical conductors or insulators and how circuits require a complete loop through which an electrical current can pass.
1 The response demonstrates a minimal understanding of objects and materials that are electrical conductors or insulators and how circuits require a complete loop through which an electrical current can pass.
0 The response is incorrect or contains some correct work that is irrelevant to the skill or concept being measured.

Note: There are 2 sample student responses for Score Point 4.

Grade 5 Science and Technology/Engineering

Question 9: Physical Sciences
Question 10: Earth and Space Science

Return to the MCAS 2014 Student Work Directory



Last Updated: April 15, 1998
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