Study Guide for Content Mastery - Teacher Edition

1 Copyright Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Guide for Content MasteryChemistry: Matter and Change Chapter 11 Introduction to ChemistryIntroduction to ChemistrySection Stories of Two ChemicalsIn your textbook, read about the ozone each of the terms below just once to complete the s (1)is made up of several layers. The air we breathemakes up the lowest level. This layer is called the (2). The next layerup is called the (3). This level contains a protective(4)layer. Ozone forms when (5)is struck by ultraviolet radiation in theupper part of the stratosphere.

2 The ozone forms a layer around Earth, which absorbs(6). Without ozone, you are more likely to get a sunburn orpossibly skin cancer. The thinning of the ozone layer, called the (7),is worrisome because without ozone all organisms on Earth are subject to harm from toomuch your textbook, read about each statement below, write trueor is another name for a are made up of carbon, fluorine, and CFCs are synthetic usually react readily with other were developed as replacements for toxic Guide FOR Content MASTERYCHAPTER1atmosphereoxygen gasozoneozone holestratospheretroposphereultraviolet radiatio