Unit 5, Activity 6, Atmosphere Layers Analysis Using your model of Earth’s Atmosphere layers, answer the following questions. 1. What is the correct order of atmospheric layers from bottom to top? 2. Which layer of the atmosphere contains the ozone layer? 3. In which layer do auroras (e.g., northern lights) occur? 4. Does the temperature increase or decrease with altitude in the troposphere? _____________ stratosphere? ________________ mesosphere? _____________ thermosphere? _______________ 5. What is the approximate height of the tropopause? __________________________ stratopause? __________________________ mesopause? __________________________ 6. What is the basis for dividing the atmosphere into four layers? 7. How does solar energy influence the atmosphere? Unit 5, Activity 6, Atmosphere Layers Analysis ANALYSIS KEY Using your model of Earth’s Atmosphere layers, answer the following questions. 1. What is the correct order of atmospheric layers from bottom to top? troposphere, stratosphere, mesosphere, thermosphere. The ionosphere and exosphere are regions in the thermosphere. 2. Which layer of the atmosphere contains the ozone layer? stratosphere 3. In which layer do auroras (e.g., northern lights) occur? thermosphere contains the ionosphere 4. Does the temperature increase or decrease with altitude in the troposphere? __decrease___ stratosphere? ___increase_____ mesosphere? _decrease____ thermosphere? __increase_____ 5. What is the approximate height of the tropopause? 12 km (at the top of the troposphere) stratopause? ____50 km__________________ mesopause? ____700 km______________________ 6. What is the basis for dividing the atmosphere into four layers? Each atmosphere changes in temperature 7. How does solar energy influence the atmosphere? The Sun provides energy that warms Earth. This heat is transferred between Earth’s surface and the atmosphere by means of radiation, convection, and conduction. Blackline Masters, Science, Grade 8 Louisiana Comprehensive Curriculum, Revised 2008