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* 1. Please identify the school where you performed the Biotoxicity laboratory:

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* 2. In what grade are you currently enrolled?

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* 3. After performing this hands-on activity, please rate how well you understand the following:

  Not at all A little Mostly Very
Biopolymers provide an efficient biological scaffold.
The overall shape or structure of a biopolymer network can be affected by the type of nanoscale monomer it is comprised of and the linkages between them.
The Young’s modulus is key in understanding the applicability of a material to a certain function.
Please offer your explanation to the following questions:

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* 4. What is the purpose of calcium in your experiment? If you added 1% CaCl2 to your gel, what do you predict would happen with your iota-carrageenan?

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* 5. What would happen if you applied bromelain to a cellulose gel?

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* 6. If you were not told during the lab what percentage of iota-carrageenan your gel contained, how could you determine the percentage of biopolymer in your gel?

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* 7. What are some examples of other materials that are mostly water? Why do people want to use biopolymers in place of other materials?

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

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* 9. On a scale from 1 to 4, where 1 means "not at all" and 4 means "very much", rate the following:

  1 2 3 4
Did you find the science you learned in this activity interesting?
Do you want to learn more about how to modify material properties?
How well can you explain silver nanoparticle is a good in killing microbes to someone who doesn’t know (perhaps a younger sibling)?

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