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15
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Name one use of extrusion
water pipes, insulation of cables, plastic films
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15
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Name a property of hard polystyrene (PS) OR expanded polystyrene (PS)
Transparent, can be colored OR Porous, soft
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15
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Name an example of HDPE OR LDPE
Buckets, containers, bottles OR Plastic bags
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15
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Name one elastomer
Natural rubber, synthetic rubber, neoprene
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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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Kitchen countertops, dishes, and food containers are made of what type of plastic?
Melamine
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boom
Lose 50 points!
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rocket
Go to first place!
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gift
Win 25 points!
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thief
Give points!
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25
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lifesaver
Give 20 points!
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magnet
Take 25 points!
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shark
Other team loses 20 points!
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thief
Give points!
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15
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Name an example of hard polystyrene (PS) OR expanded polystyrene (PS)
transparent films, dairy product containers OR Packaging, insulations
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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 a property of HDPE OR LDPE
rigid, resistant OR Soft, light, transparent
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15
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How many times can thermosetting plastics be heated?
Once
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15
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Name an example of PET
Transparent bottles, water, oil, cosmetics
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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 happens in calendering?
Thermoplastic materials are passed through rollers to make thin sheets
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lifesaver
Give 15 points!
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star
Double points!
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fairy
Take points!
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25
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banana
Go to last place!
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