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=**3rd Quarter Key Concepts**= This is an introduction to some of the key concepts we will be studying in Earth Science this quarter

**The Greenhouse Effect**


The Greenhouse Effect refers to the trapping of heat in the Earth's atmosphere. We will discuss how energy moves through our atmosphere, Specifically we will examine the role of Carbon Dioxide and other atmospheric gases in energy transfer.

Ozone and Ultraviolet Light
Ozone is a gas in our atmosphere that is made of three Oxygen atoms. Ozone plays a key role in "filtering" the amount of Ultraviolet light energy that reaches the lower parts of our atmosphere.



Shown above is a picture of a "hole" in the ozone layer in the atmosphere above the Antarctic

Renewable and Non-Renewable Resources


Renewable Resources are resources that can be replaced.

Non-Renewable resources cannot be replaced after they have been used. Examples include fossil fuels; oil, natural gas, and coal.

Climate Change


Is the Climate on Earth changing? If it is, what may be causing this change? We will be examining patterns of data to analyze these questions.

Sources of Energy
We know that the ultimate source for all the energy on Earth is our Sun. We convert energy (as per the Laws of Thermodynamics) by releasing from fossil fuels. Fossil fuels have been a reliable source of energy. Many other resources of energy will be explored, such as; Solar, wind, wave, and nuclear energy.



Wind turbines are shown above.