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* 1. Please identify the school at which you performed the Measurements at the Nanoscale laboratory.

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* 2. Did you perform both parts of the laboratory or just a single part? (i.e. Part 1: Measuring the thickness of a monolayer and Part 2: Light diffraction for nanoscale measurements)

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* 3. In what grade are you currently enrolled?

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* 4. Please rate how well you understand the following: A single layer of molecules can naturally form on water due to hydrophilic and hydrophobic interactions between molecules.

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* 5. Please rate how well you understand the following: Light is a wave that can constructively and destructively interfere to make bright and dark spots.

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* 6. Please rate how well you understand the following: When light encounters an obstacle on the nanoscale, diffraction occurs, resulting in patterns of bright and dark spots.

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* 7. Please offer your explanation to the following: Why did we used a diluted droplet of olive oil for Part 1 of this experiment?

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* 8. Please offer your explanation to the following: Suppose the oil molecule was not amphiphilic (i.e. both hydrophobic and hydrophillic) but just hydrophobic. What would happen if you dropped it onto a pond?

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* 9. Please offer your explanation to the following: In Part 2 of the laboratory, why don’t we see a rainbow when we shine the laser through the optical grating?

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* 10. Please offer your explanation to the following: In Part 2 of the laboratory, during the fabrication steps, why did you observe no diffraction when shining your laser through the combined grating/glue/glass structure? (Step 9 in the Procedure)

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* 11. Identify any concepts that you might have better understood after performing this activity:

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* 12. Did you find the science you learned in this activity interesting?

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* 13. Do you want to learn more about molecular interactions, light diffraction, and nanoscale measurements?

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* 14. How well can you explain the measurement principles demonstrated by this laboratory?

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