AIR PRESSURE

1. What is air pressure?

Air pressure is the exerted by the wight of the air.

2. Where is the closest high pressure system to Fayetteville? (city, state)

Onedia, Tenn.

3. What is the weather (temperature, precipitation, cloud cover) like there?

is about 44 degrees, and it feels sunny

4. Where is the closest low pressure system to Fayetteville? (city, state)

Forrest City, ARK

5. What is the weather (temperature, precipitation, cloud cover) like there?

click here to view my webquest!!!
http://docs.google.com/Doc?id=dch9g3ch_1hpxzvsfb

3/19/09 WORST WEATHER EVENTS

1. Which weather events kill the most Americans?

I believe that hurricanes kill the most people, becuase you hear stories about Katrina and how it devestated the states in the south but when you hear stories about tornadoes it doesnt kill that many people.

2. Which weather events kill the most people (in the world)?
typhones, earth quakes and hurricanes.

3. Are your answers to those two questions different? Why or why not?
Yes becuase in america its mostly hurricanes that we have killing people.

4. Read this article. Do you agree or disagree? Why or why not?
I do but i dont, because of the fact that other storms causes those disasters.

5. For your response to #1, find three weather events. Describe what happened (how severe was the storm, did anyone get hurt or die, how much property damage, include pictures, etc.).

Hurricanes

KATRINA- the damn broke and New Orleans was flooded

Issabelle- costlyess and deadless hurricane in 2003.

wilma- was the most dangreous in 1935

Dating Methods (2/17/09)

1. What is relative dating? (hint: not when two cousins go on a date)

Relative dating is the process by which rocks are placed in their proper sequence or order; only the chronological order of events is determined, no the absolute age in years.

2. When would a geologist use radiometric dating?

Geologists would use radiometric dating when rocks are 75,000 years or older. They would us radiometric dating when they want to find the absolute age of rocks and minerals.

3. When would a geologist use radiocarbon dating?

A geologist would use radiocarbon dating when rocks are 75,000 and younger. They compare the amount of Caron 14 to Carbon 12 to determines the age of a rock or mineral.

4. Explain how you can use tree rings to date and study the recent past? (see p. 351)

You can study the rings on a tree by seeing how many rings it has. If it has a lot of rings, it is old. Another way is the insects found in the sap of the tree.daughter material.

5. What is half-life

Half-life is the time required for one half of the atoms of a radioactive substance to decay.

6. Explain how today's lab showed half-life.

It shows half-life because when you would shake the pennies, some of them turn over and some of them don't, and that shows the parent material changing into the daughter material.

Air Masses

1. What are the four main types of air masses? What does each letter stand for?
mT= Maritime Tropical
mP= Maritime Polar
cP = Continental Polar
cT = Continental Tropical

2. Which kind of air mass(es) do you think brings hurricanes?
CONTINENTAL POLAR AIR MASS

3. Which kind of air mass(es) do you think brings drought?

CONTINENTAL TROPICAL AIR MASS

4. Which kind of air mass(es) brings lake-effect snowstorms?
MARITIME POLAR AIR MASS

5. Today we learned about the four main types of air masses. In reality, there any many more than four. What are two others? Explain them.

Arctic and Highland