Name
Block
17.2 Layers of the Atmosphere
Date
(p.369–373)
PART A Write true if the statement is true. If the statement is false, change the underlined term to make
the statement true.
1. The atmosphere is made up of four main layers. 2. The Thermosphere has the smallest distance from the top to the bottom. 3. Ozone is a form of oxygen gas. 4. The higher you go in the Stratosphere, the colder it gets. 5. The Ionosphere layer stops most of the ultraviolet radiation from the Sun. 6. The stratosphere is the layer that eventually thins into outer space. 7. An increase in Carbon Dioxide emissions has led to “global warming.” 8. Our original atmosphere was formed by gases released by earthquakes. 9. Oxygen makes up about 78% of the volume of atmospheric gases. 10. The presence of Oxygen gas in our atmosphere makes life possible. PART B Decide which layer of the atmosphere is described by each characteristic listed in the table.
Place a check mark in the correct column.
CHARACTERISTICS OF THE LAYERS OF THE ATMOSPHERE
Characteristic
Troposphere
Stratosphere
Mesosphere Thermosphere
1. Contains the Ozone layer 2. Where all weather takes place 3. Contains the Ionosphere 4. Where airplanes travel 5. Located closest to Earth’s surface 6. Where most water vapor is found 7. Meteors burn up in this layer 8. Coldest layer 9. Contains a layer that absorbs harmful ultraviolet radiation 10. Hottest layer, thinnest air 11. Where all clouds are found 12. The layer where satellites orbit 13. Greatest air pressure (most dense) 14. Between the Stratopause & Mesopause