California Earth Science Standard 8a. Students know the thermal structure and chemical composition of the atmosphere.

Today you will study the thermal structure and chemical composition of the Earth's atmosphere. Answer the questions in your blog.

Go here and answer the following questions:

1. What gasses make up the Earth's atmosphere and what are the percentages of each?

2. Most of the atmosphere is within how many miles of the surface?

3. What is the air pressure at sea level? At 10,000 ft?

4. How thick is the Troposphere and does the temperature go up as altitude increases or down?

5.How high is the Stratosphere off the surface and how high does it reach?

6. Does the temperature of the Stratosphere increase or decrease as altitude increases?

7. What formed the Earth's atmosphere?

8. What has modified the earth's atmosphere since its formation?

Go here and use the pie chart to answer the questions below:

9. What is the atmosphere mostly made of?

10. What is nitrogen important for?

11. What gas is is second most in our atmosphere?

12. What is it good for?

13. What gas is third most and what is it good for?

14. What gas is forth most and what is it good for?

15. What other non-gas things are in the atmosphere?