How is This Junkyard Getting Cleaned Up?

In the gif, we see a large metal object being used to pick up metal hub caps in a junkyard. Before the machine is turned one, the hub caps stay on the ground. Once electricity flows through the machine, the hub caps are pulled up toward the large piece of metal at the top of the screen.





As you answer the questions that follow, think about how we might be able to tell that electrical or magnetic forces are moving the hub caps.
NGSS Phenomena: In a junkyard, a large piece of metal is lowered near a pile of metal hubcaps. As the large piece of metal gets closer, the hub caps fly up and stick to the metal and each other.

1. How can we see cause and effect in this system?

2. What question could you ask to clarify how magnetic forces are at work here?

3. What scientific ideas did you use to help create your question?

4. Which of the following questions would help to determine the source of the force shown here?

5. Write a hypothesis to help test the forces that are interacting in this system.

6. Explain the scientific ideas that support your hypothesis.

7. Which question would help to decide the strength of the force we're observing?

8. Which question would help us understand if this was a magnetic force?

9. Which question would help us understand how strong this force is?

10. What do you predict would happen if we used this tool to pick up a pile of wood? Why?

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This free response question aligns to the following standards

  • Cause and Effect: Mechanism and Prediction

  • MS-PS2-3

This free response question aligns to the following standards

  • PS2.B: Types of Interactions

  • Asking Questions and Defining Problems

  • MS-PS2-3

  • Cause and Effect: Mechanism and Prediction

This free response question aligns to the following standards

  • MS-PS2-3

  • PS2.B: Types of Interactions

  • Asking Questions and Defining Problems

This multiple choice question aligns to the following standards

  • PS2.B: Types of Interactions

  • Asking Questions and Defining Problems

  • MS-PS2-3

  • Cause and Effect: Mechanism and Prediction

This free response question aligns to the following standards

  • MS-PS2-3

  • Cause and Effect: Mechanism and Prediction

  • Asking Questions and Defining Problems

  • PS2.B: Types of Interactions

This free response question aligns to the following standards

  • PS2.B: Types of Interactions

  • Asking Questions and Defining Problems

  • MS-PS2-3

This multiple choice question aligns to the following standards

  • PS2.B: Types of Interactions

  • Asking Questions and Defining Problems

  • Cause and Effect: Mechanism and Prediction

  • MS-PS2-3

This multiple choice question aligns to the following standards

  • PS2.B: Types of Interactions

  • Asking Questions and Defining Problems

  • MS-PS2-3

This multiple choice question aligns to the following standards

  • PS2.B: Types of Interactions

  • 3-PS2-3

  • Asking Questions and Defining Problems

  • MS-PS2-3

This free response question aligns to the following standards

  • MS-PS2-3

  • Cause and Effect: Mechanism and Prediction

  • Asking Questions and Defining Problems

  • PS2.B: Types of Interactions

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