Troposphere

The troposphere is the lowest layer of the Earth's atmosphere, extending from the Earth's surface up to an average height of about 7-20 kilometers (4-12 miles) depending on the latitude and the season. It contains nearly all the weather on Earth and is where we live and breathe. The troposphere is characterized by a decrease in temperature with increasing altitude, as well as the presence of clouds, rain, and weather patterns.

Key Facts about the Troposphere

• Location: Extends from the Earth's surface up to an average height of 7-20 kilometers.
• Temperature: Generally decreases with altitude at an average lapse rate of 6.5 °C per kilometer (3.5 °F per 1,000 feet).
• Weather: Nearly all weather phenomena occur in the troposphere, including clouds, rain, and storms.
• Composition: Contains approximately 78% nitrogen, 21% oxygen, and trace amounts of other gases.

Study Guide

To understand the troposphere, consider the following questions:

1. What is the height range of the troposphere?
2. How does temperature change with altitude in the troposphere?
3. What are some common weather phenomena found in the troposphere?
4. What gases make up the composition of the troposphere?

By exploring these questions, you can gain a deeper understanding of the troposphere and its importance in the Earth's atmosphere.

[Troposphere] Related Worksheets and Study Guides:

• Earth's AtmosphereScience • Sixth Grade