2. Directions: Choose the correct layer of the atmosphere. Identify the layer that the red star marks.

3. Stratosphere Exosphere Ionosphere Thermosphere Troposphere Mesosphere the outermost layer of the Earth's atmosphere, where atmospheric pressure and temperature are low

4. Stratosphere Exosphere Ionosphere Thermosphere Troposphere Mesosphere the atmospheric layer between the troposphere and the mesosphere. It is characterized by a slight temperature increase with altitude and by the absence of clouds

5. Stratosphere Exosphere Ionosphere Thermosphere Troposphere Mesosphere the layer of the atmosphere located above part of the ionosphere (starting at the coldest part of the atmosphere) and below outer space; it consists of the exosphere and part of the ionosphere

6. Stratosphere Exosphere Ionosphere Thermosphere Troposphere Mesosphere the lowest layer of the Earth's atmosphere

7. Stratosphere Exosphere Ionosphere Thermosphere Troposphere Mesosphere the atmospheric layer between the mesosphere and the exosphere; it is part of the thermosphere

8. Stratosphere Exosphere Ionosphere Thermosphere Troposphere Mesosphere the atmospheric layer between the stratosphere and the ionosphere

21. PLAY AGAIN!!