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Plastics and Recycling

Total questions: 17

Worksheet time: 17mins

Name
Class
Date
1.

This Quizizz goes along with "How Recycling Works" by SciShow https://youtu.be/b7GMpjx2jDQ

Have you watched the video?

a)

yes

b)

no

2.

A "MRF" is a ___ or ___. (select 2)

a)

manufacturing recyclables factory

b)

material recovery facility

c)

municipal resource facility

d)

recycling plant

3.

Dual stream recycling plants...

a)

keep glass items separate

b)

keep plastic items separate

c)

keep paper items separate

d)

keep metal items separate

4.

Though nearly any material can be recycled, some items like electronics, lightbulbs, or appliances are too ___ to be recycled. (select all that apply)

a)

large

b)

complex

c)

full of toxins

d)

new

5.

Single stream recycling focuses on paper, plastic, and which other three categories? (select 3)

a)

organic material

b)

steel

c)

aluminum

d)

glass

e)

rubber

6.

Which material is separated first at the MRF?

a)

paper

b)

glass

c)

steel

d)

aluminum

e)

plastic

7.

Rotary screen separators allow paper to travel upward to a conveyor belt while other materials...

a)

are crushed

b)

are picked out by hand

c)

fall between the wheels

8.

A hot water bath breaks paper down into strands of cellulose fibers, this mushy substance is called...

a)

pulp

b)

bark

c)

paper

d)

bales

9.

Chemicals and ___ help remove ink from the pulp.

a)

heat

b)

pressure

c)

air bubbles

d)

time

10.

Which material is separated next at the MRF?

a)

paper

b)

glass

c)

steel

d)

aluminum

e)

plastic

11.

How is steel removed from the other items at the MRF?

a)

by hand

b)

by rotary separators

c)

with a magnet

d)

with a water bath

12.

An air classifier lifts aluminum and plastic up while letting ___ fall.

a)

glass

b)

waste

c)

paper

d)

steel

13.

Glass must also be separated by...

a)

shape

b)

size

c)

color

d)

thickness

14.

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.

a)

higher

b)

lower

15.

Recycling numbers indicate the ... (select 2)

a)

type of plastic

b)

color of plastic

c)

age of plastic

d)

molecular structure of plastic

16.

Each type of plastic has different... (select all that apply)

a)

properties

b)

uses

c)

chemical compositions

d)

sources

17.

Plastics may be separated by type using ___ or infrared sensors that send out puffs of air.

a)

chemicals

b)

gravity

c)

human labor

d)

heat