Ozone Layer

CFC's are found in old...

1. Refrigerators 2. Air conditioners 3. Aerosol sprays

List the steps on how CFC's destroys ozone

1. UV rays strikes CFC molecules 2. Chlorine molecules break away. 3. Chlorine molecule steals an oxygen atom from the ozone molecule and forms chlorine monoxide. 4. A free oxygen atom sees the chlorine monoxide and joins them, causing the chlorine molecule to break free, which makes oxygen. The chlorine molecule destroys more ozones.

In the mid ..., many countries banned the use of CFC's.

1990's

Ultraviolet radiation

An energy comes from the sun and can damage to your skin and cause cancer

Chemical compounds that destroy the ozone layer.

Chlorofluorocarbons (CFC's)

The size of the ozone hole... and ... throughout the ... .

Increases, decreases, year

The ozone hole is gone by

December

The ozone layer shields us from the suns...

Harmful rays

The ozone hole is at its biggest in

October

O2

Oxygen

A molecule made up of three oxygen atoms bonded together

Ozone

O3

Ozone

The ozone hole begins in

September

Ozone absorbs most of the ... that enters the atmosphere

Ultraviolet Rays