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15
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Name one use of vacuum forming
ice trays, plastic bathtubs, car dashboards
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monster
Reset all scores!
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shark
Other team loses 10 points!
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shark
Other team loses 25 points!
Okay!
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lifesaver
Give 20 points!
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15
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Name one step of extrusion
1 Thermal plastic material is added to a machine where they melt and form liquid. 2. the plastic is shaped 3. put in cool water to harden
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15
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What is an example of polyurethane?
sponges, foam, glue, varnish, transmission belts, frictions wheels, insulators
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15
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Name a property of PVC
strong or waterproof
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15
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What happens in calendering?
Thermoplastic materials are passed through rollers to make thin sheets
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15
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Name a property of PP (Polypropylene)
Flexible, resistant to chemicals, hard surface
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15
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Compression molding heats and presses plastic into a mold. Name one example.
Outer castings
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15
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Injection molding introduces melted thermoplastics into the mold. Name one example.
Household containers, toys, certain parts of cars or planes
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15
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Name one use of calendering
Counter tops and cupboards
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15
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Blow molding uses air to mold plastic. Name one example.
bottles, toys, hollow objects
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15
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Name one step of vacuum forming
1. A sheet of thermoplastic material is placed over a mold 2. heated until soft 3. vacuum created for shape 4. sheet cooled and removed
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eraser
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seesaw
Swap points!
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fairy
Take points!
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baam
Lose 25 points!
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15
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Name an example of PET
Transparent bottles, water, oil, cosmetics
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baam
Lose 25 points!
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gift
Win 10 points!
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shark
Other team loses 25 points!
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thief
Give points!
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25
15
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Electrical plugs are made of what type of plastic?
Bakelite
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