St Aiden's - the Ozone

Quest of the Ring Leaders (an interactive,
on-line computer game to teach children
about recycling and protecting the
environment.)

KIDS FUN PAGES

Household Waste - Resources &
Downloads (PDF) from EPA USA
These links will take you directly to the USA EPA website where
you will find a phenomenal array of free downloads
Earth Day - USA EPA
Wastes
Household Waste
Household Hazardous Wastes
Indoor Air Quality for Schools
Climate Change
Climate Change - What YOU Can do
Recycling PreK-5 - Teachers' Curriculum
Project AIRE

PRINTABLES & ACTIVITIES

RESOURCE GUIDE FOR DESIGNING TOBACCO PREVENTION IN SCHOOLS PDF

MY RESPIRATORY SYSTEM GR 1 - 3 (WORKBOOKS & ACTIVITIES)
MY RESPIRATORY SYSTEM GR 4-6 (WORKBOOKS & ACTIVITIES)
MY RESPIRATORY SYSTEM GR 7-12 (WORKBOOKS & ACTIVITIES)
PBS.ORG PRINTABLES & DOWNLOADS

SMOKING, YOU & THE ENVIRONMENT

Ozone and Your Environment

Learn the terminology and skills used by today's scientists while focusing on one of
Earth's most pressing environmental problems-Ozone in our environment.

Recently, ozone, a simple molecule made from three oxygen atoms, has been
discussed with great concern in headline stories such as, "Rising Ozone Levels in LA
Cause Smog Alert," and "Depletion in Ozone Layer May Lead to Cancer!" Whether it is
too much or too little, the effect of human activities on the level of ozone in our
environment is under close scrutiny by environmentalists, politicians, and lawmakers.
The lessons in this unit well help you discover why.

Ozone can be found in two very different layers of our atmosphere, the troposphere and
the stratosphere. The environmental problems related to the levels of ozone in these
two atmospheric layers are very different. In the troposphere, the level of the
atmosphere that we live in, ozone is a component of the air pollution commonly referred
to as "smog." The amount of ozone in our troposphere is increasing because of
chemicals emitted wherever natural gas, gasoline, diesel fuel, kerosene, and oil are
combusted.

Nearly 90% of our Earth's ozone is found in the atmospheric layer above ours called the
stratosphere. This layer extends from about 14.5 kilometres to 50 kilometres (9-31
miles) in altitude and is where aeroplanes fly. The ozone layer is within the stratosphere,
approximately 15-40 kilometres (10-25 miles) above the Earth's surface. This ozone is
important for blocking the Earth from the Sun's harmful ultraviolet (UV) rays by
absorbing the UV energy and keeping the rays from penetrating to the Earth.

The environmental problems related to stratospheric ozone result from the depletion of
the ozone by reactions with man-made chemical compounds called
chlorofluorocarbons or CFCs. These compounds are commonly used for refrigerants,
solvents, and foam-blowing agents. Depletion of ozone causes ozone holes in our
atmosphere that can be seen by modern detection equipment. Currently, two major
holes exist - one over the Antarctic and another over Australia. The size of these ozone
holes will continue to increase unless actions are taken to decrease the level of CFCs in
our atmosphere.

LESSON 1: Ozone is News!

LESSON 2: Where is the Ozone!

LESSON 3: Making and Breaking Ozone

LESSON 4: Ozone Pollution: Smog Alert!

LESSON 5: Students Rescue Earth!

LESSON 6: Keeping the Rays OUT!

LESSON 7: The Sky is Falling
Developed by Matthew Binder (8th grade Earth Science), Centerville
Middle School, Hempfield School District, Landisville, PA.

Please familiarise yourself with our Terms of Use and Disclaimer prior to downloading resources. Contents of this website (c) Donnette E Davis and/or St Aiden's
Homeschool unless otherwise stipulated.

Earth
Ozone

Files are in PDF format. You can download Acrobat here. Download any or all of our Grade K-5 Thematic
Units, Printables and/or Lesson Plans for use in your homes, homeschool, classroom or community centres.