Problem 19
Describe what happens when water vapor rises and cools.
Problem 19
Why can flying from Seattle to Boston take less time than flying from Boston to Seattle in the same aircraft?
Problem 20
Explain why air pressure decreases with an increase in altitude.
Problem 21
Explain how Earth can heat the air by conduction.
Problem 22
Explain how humans influence the composition of Earth's atmosphere.
Problem 22
Form Hypotheses Carbon dioxide in the atmosphere prevents some radiation from Earth's surface from escaping to space. Hypothesize how the temperature on Earth might change if more carbon dioxide were released from burning fossil fuels.
Problem 23
Identify and Manipulate Variables and Controls Design an experiment to find out how plants are affected by differing amounts of ultraviolet radiation. In the design, use filtering film made for car windows. What is the variable you are testing? What are your constants? Your controls?
Problem 24
Explain why the doldrums form over the equator.
Problem 25
As you increase in altitude what happens to the air pressure? How might this affect people who move to the mountains?
Problem 25
Make a Poster Find newspaper and magazine photos that illustrate how the water cycle affects weather patterns and climate around the world.
