Difference between revisions of "AY Honors/Plastics/Answer Key"

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< AY Honors‎ | PlasticsAY Honors/Plastics/Answer Key
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==2. Know how to clean and properly take care of plastic molds.==  
 
==2. Know how to clean and properly take care of plastic molds.==  
 
==3. What safety precautions should be used when working with plastics? ==
 
==3. What safety precautions should be used when working with plastics? ==
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*Go over these safety rules with your Pathfinders ''before'' opening any chemicals.
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*Wear protective gear, including safety goggles, gloves, and an apron or smock. 
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*Read and heed all manufacturer warnings.
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**Know what to do if the chemicals come into contact with a person (skin, eyes, or if ingested) ''before'' opening them.
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*Use only in a well-ventilated area, preferably outside.
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*Use only under adult supervision
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*Do not pour resin down a drain.  It may cause an expensive clog.
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==4. Tell how to mix resin for casting and colored layers. ==
 
==4. Tell how to mix resin for casting and colored layers. ==
 
==5. Why are the following used? ==
 
==5. Why are the following used? ==

Revision as of 01:18, 10 December 2008

Template:Honor header

1. Make a list of the materials and equipment used in making small castings in plastic molds.

  • Plastic resin
  • Catalyst
  • Eye dropper (for adding the catalyst)
  • Plastic disposable cup
  • Craft stick (for stirring)
  • A plastic mold
  • An embeddable object
  • Newspapers
  • Goggles, gloves, and a smock (or old clothes)
  • Mold release

2. Know how to clean and properly take care of plastic molds.

3. What safety precautions should be used when working with plastics?

  • Go over these safety rules with your Pathfinders before opening any chemicals.
  • Wear protective gear, including safety goggles, gloves, and an apron or smock.
  • Read and heed all manufacturer warnings.
    • Know what to do if the chemicals come into contact with a person (skin, eyes, or if ingested) before opening them.
  • Use only in a well-ventilated area, preferably outside.
  • Use only under adult supervision
  • Do not pour resin down a drain. It may cause an expensive clog.

4. Tell how to mix resin for casting and colored layers.

5. Why are the following used?

a. Catalyst

b. Surface hardener

c. Pigments

6. What is meant by polymerization?

7. Prepare and embed two nature items suitable for embedding. Nature items may be embedded in one or more castings.

8. Make three castings with at least one item embedded in each casting.