sunglasses a where project by: heather bradshaw. why do people wear sunglasses? to protect...

Sunglasses

A Where Project By: Heather Bradshaw

Why do People Wear Sunglasses?

To protect themselves from Ultraviolet Rays

(UV Rays)

To Prevent GlareTo Look Cool

What are the Different Parts of

Sunglasses?

The Lenses The FramesThe Hinges

What can Lenses be Made of?

Plastic• Lightweight• Shatter-resistant• Can block UV Rays• Can be photochromic• Can be polarized to reduce glare

Optical Glass• Can be photochromic• Can be polarized to reduce glare• Great optical quality• Easy to scratch• Shatter easily

But what non-renewable

resources are in plastic?

Crude Oil#1 Producer: Saudi Arabia#2 Producer: Russia#3 Producer: United States#4 Producer: China#5 Producer: Iran

Natural Gas#1 Producer: Russia#2 Producer: The United States#3 Producer: Canada#4 Producer: Iran#5 Producer: Algeria

Coal#1 Producer: China#2 Producer: The United States#3 Producer: India#4 Producer: Australia#5 Producer: South Africa

Non Renewable Resources are resources that cannot be grown or regenerated at the rate at which they are being

used.

Limestone#1 Producer: ChinaOther Large Producers:

• India• The United States• Europe

What about Glass?

SilicaMainly produced in:

• The Untied States• Brazil

Sand#1 Producer: Mexico#2 Producer: Canada#3 Producer: Norway#4 Producer: Chile#5 Producer: Australia

What are the frames made of?

Metal• Tend to last longer than

Plastic Frames

Plastic• Usually less expensive• Not as good quality as metal

frames

We know where plastic comes from,

but what about some of the metals used in

frames?

Nickel#1 Producer: China#2 Producer: Russia#3 Producer: Japan#4 Producer: Canada#5 Producer: Australia

Titanium#1 Producer: Australia#2 Producer: South Africa#3 Producer: Canada#4 Producer: China#5 Producer: India

Aluminum#1 Producer: China#2 Producer: Russia#3 Producer: The United States#4 Producer: Canada#5 Producer: Australia

The hinges are also made from various metals and plastics

So what does this all mean?

Sunglasses are made of non renewable

resourcesEvery time we buy a

new pair of sunglasses, we are

taking resources from the Earth

We should be careful with our sunglasses to

protect the environment

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Bibliography