WorksheetsPlastics and Recycling
Total questions: 17
Worksheet time: 17mins
This Quizizz goes along with "How Recycling Works" by SciShow https://youtu.be/b7GMpjx2jDQ
Have you watched the video?
yes
no
A "MRF" is a ___ or ___. (select 2)
manufacturing recyclables factory
material recovery facility
municipal resource facility
recycling plant
Dual stream recycling plants...
keep glass items separate
keep plastic items separate
keep paper items separate
keep metal items separate
Though nearly any material can be recycled, some items like electronics, lightbulbs, or appliances are too ___ to be recycled. (select all that apply)
large
complex
full of toxins
new
Single stream recycling focuses on paper, plastic, and which other three categories? (select 3)
organic material
steel
aluminum
glass
rubber
Which material is separated first at the MRF?
paper
glass
steel
aluminum
plastic
Rotary screen separators allow paper to travel upward to a conveyor belt while other materials...
are crushed
are picked out by hand
fall between the wheels
A hot water bath breaks paper down into strands of cellulose fibers, this mushy substance is called...
pulp
bark
paper
bales
Chemicals and ___ help remove ink from the pulp.
heat
pressure
air bubbles
time
Which material is separated next at the MRF?
paper
glass
steel
aluminum
plastic
How is steel removed from the other items at the MRF?
by hand
by rotary separators
with a magnet
with a water bath
An air classifier lifts aluminum and plastic up while letting ___ fall.
glass
waste
paper
steel
Glass must also be separated by...
shape
size
color
thickness
Recycled glass takes less energy to produce than new glass because recycled glass shards melt at a ___ temperature than the different ingredients of new glass.
higher
lower
Recycling numbers indicate the ... (select 2)
type of plastic
color of plastic
age of plastic
molecular structure of plastic
Each type of plastic has different... (select all that apply)
properties
uses
chemical compositions
sources
Plastics may be separated by type using ___ or infrared sensors that send out puffs of air.
chemicals
gravity
human labor
heat
