Class rules Come into the classroom ready to work. No eating or drinking in the classroom after breakfast. No profanity. Keep hands, feet and words to yourself. No sleeping or heads on the desks.

C – 2-3 H - raised hand to ask question A - Ecological Footprint with partner M - at desks P - everyone S - 80 % and above on exam

Bell ringer #1 The following are the steps of the nitrogen cycle, place them in order from the start of the cycle to the end. Write a one to two word description of how each part contributes to the nitrogen cycle. Assimilation Nitrification Nitrogen cycle fixation Denitrification Ammonification

Bell ringer #2 Global climate change is occurring. Almost all the environmental scientists agree emissions if certain gases could be contributing to it. Carbon dioxide, methane, nitrous oxide, ozone, hydro- chlorofluorocarbons, and water vapor are the main culprits. These “greenhouse gases” have increased dramatically in our atmosphere in the last 300 years. Human activities, especially the mining and burning of fossil fuels fro transportation and industry, increase greenhouse gases in the atmosphere. An increasing industrial activity in developing nations will likely lead to rising emissions of those gases. If unchecked, carbon dioxide levels in the atmosphere could reach twice preindustrial levels by 2050 and double again by 2100. Computer models show the rise in greenhouse gases could raise Earth’s temperatures by as much as 10 degrees Fahrenheit. Which of the following gases are considered greenhouse gases? Methane Carbon dioxide Ozone Nitrous oxide

What is Carbon? An element The basis of life on Earth It can be found in rocks, oceans, and the atmosphere

The Carbon Cycle All living things are made of carbon. Because the Earth is a dynamic place, carbon does not stay still. It is on the move! In the atmosphere, carbon is attached to some oxygen in a gas called carbon dioxide. Plants use carbon dioxide and sunlight to make their own food and grow. BRAIN TEASER What is the process called and what is the chemical formula for it? Photosynthesis and CO2 + H2O + the sun’s energy  C6H12O6 + O2

Carbon Cycle Brain teaser What is fossil fuel? How do they impact our environment. When humans burn fossil fuels, most of the carbon quickly enters the atmosphere as carbon dioxide. Plants that die and are buried may turn into fossil fuels made of carbon like coal and oil over millions of years. A carbon- containing fuel formed over millions of years from the remains of living organisms.

The Carbon Cycle

What is Ecological Footprint? Ecological Footprint: the environmental impact of an individual or population in terms of the total amount of land and water required. As humans we consume resources and produce waste on a daily basis. As our populations grow and global consumption increases, it is essential that we measure nature's capacity to meet these demands on our planet. The Ecological Footprint has emerged as one of the world's leading measures of human demand on nature.

Ecological Footprint TURN AND TALK Turn to the neighbor next to you and talk about the question being asked. I (Ms. Leonard) will call on random groups to answer the question. The class will listen quietly will the responses are given QUESTION: Law of conservation of matter (matter may be transformed from one type to another, but it cannot be created or destroyed). How is understanding this law important to understanding the biogeochemical cycles? If our ecological footprint is based on nature’s capacity to meet the demands of our planet, how do we keep up with this demand as well as preserve the environment we live in?

Which of our activities influence the state of the Earth?

Calculating our Footprint YOU WILL BE WRKING INDEPENDENTLY!!! You will be using the information found on pg. 33, 253, 547 Read the information and then copy the table onto your paper before calculating your footprint. Pg. 33- Ecological footprint Add all the numbers under column 1 and get a total number. Then divide the original number by the total too get the proportion relative. EX: 0.5/ 21.5= 0.02 Pg. 253- Ecological Footprint Pg. 547- Ecological Footprint