Pink Worksheet for Astronomy Unit | Ms. Laura Branch

Earth Science:  Astronomy Unit Questions

(pink)

 

Part 1 (review)  Atmosphere (Chapter 22)

 

  1. The Earth’s atmosphere is composed mainly of which two elements?

 

 

  1. Draw/sketch and label a cross-section of the different layers of the Earth’s atmosphere.

 

 

 

 

  1. Explain whether the temperature increases or decreases with elevation in the troposphere.

 

 

  1. Explain whether the temperature increases or decreases in the upper stratosphere. Explain why this temperature change occurs,

 

 

  1. What is the greenhouse effect?

 

 

  1. What are the pros and cons of the greenhouse effect?

 

 

  1. What is the ozone layer?  Where is it located?  What does it do?

 

 

  1. What is the difference between weather and climate?

 

 

  1. Explain how sudden climate changes can cause mass extinctions such as the extinction of the dinosaurs 65 million years ago.

 

Part 2.  Formation of the Solar System  (Chapter 27)

 

  1. What is the nebular theory/nebular hypothesis?

 

 

  1. What makes up our solar system?

 

 

 

  1. How long ago did our Sun form?

 

 

 

  1. As our solar system was forming, at what temperature did hydrogen fusion begin?
  2. What percentage of matter in the solar nebula because part of the sun?

 

 

 

  1. Compare the age of the planets to that of the Sun.

 

 

 

  1. How did the planets form?

 

 

  1. Which planets are considered the inner planets?  What is another name for this group of planets?

 

 

  1. Which planets are considered to be the outerplanets?  What is another name for this group of planets?

 

 

  1. What are the specific differences in composition between the inner planets and the outer planets?

 

 

  1. Why could the outer planets retain so much of their original gases while the inner planets could not?

 

 

  1. Why is Pluto not considered a planet?

 

 

  1. Which planet is known as Earth’s twin and why? (Hint:  Think about differences of atmospheres for each planet)

 

© Laura Branch 2017