Layers of The Atmosphere

Explore Earth's atmosphere layers! Label, define, and learn about troposphere, stratosphere, mesosphere, thermosphere, and exosphere.

Layers of the Atmosphere Watch the video and answer the questions to review the layers of the atmosphere. Question 1: Label the layers of the atmosphere. Word Bank: COPY AND PASTEMesosphereStratosphereTroposphereExosphereThermosphere Exosphere Thermosphere Mesosphere Stratosphere Troposphere Question 2: Fill in the table with the missing information. Layer Information Exosphere Last layer. Extends into outer space. Thermosphere Hottest layer. Thickest layer. Mesosphere Where most meteors burn up. Middle layer. Stratosphere Contains the ozone layer. Troposphere We live here. Where weather happens. Question 3: What is the best definition for Atmosphere? The layer of water covering Earth’s surface. A thin layer of gases that form a protective covering around the planet. The layer of continental and oceanic crusts. Question 4: Fill in the blanks. The atmosphere is a thin layer of gases that cover the planet. The most abundant gases in the atmosphere are nitrogen78% and oxygen 21%. The rest of the gases in the atmosphere only comprise about 1% of it. The atmosphere traps heat, making the temperature on Earth comfortable for living beings. The oxygenin our atmosphere is essential for life. Question 5: Why does air density decrease with increasing altitude within Earth's atmosphere? Air density decreases with increasing altitude because more atoms escape into outer space. Air density decreases with increasing altitude because the gravitational pull exerted by the Earth decreases with increasing altitude. Air density decreases with increasing altitude because energy from the sun pushes the air particles closer to Earth. Question 6: What happens to air pressure as altitude increases? (Think about the top of a mountain) Decreases – the higher you go, the LESS pressure you feel Increases – the higher you go, the MORE pressure you feel Stays the same This chart shows the relationship between temperature and altitude within each layer of Earth's atmosphere.Which comparison between layers of the atmosphere is correct? Temperature increases at high altitude in the troposphere because unlike the other layers, it contains the ozone layer Temperatures decrease at high altitude in the stratosphere because unlike the other layers, it contains the ionosphere Temperature decreases at high altitude in the mesosphere because unlike the other layers, it contains the ozone layer Temperature increases at high altitude in the thermosphere because unlike other layers, it contains the ionosphere How does the temperature of the stratosphere compare to the mesosphere? It is colder than the mesosphere because the stratosphere contains the ozone layer. It is warmer than the mesosphere because the stratosphere contains the ozone layer. It is colder than the mesosphere because the stratosphere contains the ionosphere. It is warmer than the mesosphere because the stratosphere contains the ionosphere. Why does air pressure decrease from the troposphere to the exosphere? because there are fewer air molecules as altitude increases because there are more air molecules as altitude increases because there are higher temperatures as altitude increases because there are lower temperatures as altitude increases