WELCOME BACK!!WELCOME BACK!!

You need a new spiral notebook and You need a new spiral notebook and pencils for 2pencils for 2ndnd semester (in two weeks). semester (in two weeks).

I will give you an EOC topic/vocab study I will give you an EOC topic/vocab study guide later in the week. guide later in the week.

Mt. St. Mt. St. HelensHelens

By: Mrs. GordonBy: Mrs. Gordon

LocationLocation

Washington, USAWashington, USA

96 miles South 96 miles South of Seattle, WAof Seattle, WA

50 miles North 50 miles North of Portland, ORof Portland, OR

Elevation: 8,363 Elevation: 8,363 ftft

Type of VolcanoType of Volcano Mt. St. Helens is a Mt. St. Helens is a

stratovolcanostratovolcano (also (also known as a known as a composite volcano). composite volcano). – Tall, steep sides, Tall, steep sides,

cone-shapedcone-shaped– Alternating layers of Alternating layers of

ash and tephraash and tephra It is located near a It is located near a

subduction zonesubduction zone of of the west coast of the the west coast of the United States.United States.

Eruptive HistoryEruptive History Mt St Helens’ most famous eruption happened on May 18Mt St Helens’ most famous eruption happened on May 18thth, ,

1980 after a magnitude 5.1 earthquake triggered the 1980 after a magnitude 5.1 earthquake triggered the largest landslide in recorded history.largest landslide in recorded history.– 1,314 feet of elevation on the mountain was removed in the 1,314 feet of elevation on the mountain was removed in the

blast.blast.– The blast devastated 229 square miles of forest.The blast devastated 229 square miles of forest.– The ash plume reached about 80,000 feet in less than 15 The ash plume reached about 80,000 feet in less than 15

minutes spread across US in 3 days; circled Earth in 15 days.minutes spread across US in 3 days; circled Earth in 15 days.– 57 people were killed.57 people were killed.

Positives and NegativesPositives and Negatives

+ + + It is a world famous tourist attraction and + + + It is a world famous tourist attraction and an active scientific volcano laboratory.an active scientific volcano laboratory.

- - - - Many people still live near the volcano, - - - - Many people still live near the volcano, exposing themselves to future danger. Larger, exposing themselves to future danger. Larger, longer lasting eruptions have occurred in the longer lasting eruptions have occurred in the volcano's past and are likely to occur in the future. volcano's past and are likely to occur in the future.

Interesting FactsInteresting Facts 21 people were never recovered 21 people were never recovered

from the 1980 blast zone.from the 1980 blast zone.

Northwest Indians told early Northwest Indians told early explorers about the firey Mount St. explorers about the firey Mount St. Helens. The Indian name for the Helens. The Indian name for the mountain, mountain, Louwala-CloughLouwala-Clough, means , means "smoking mountain"."smoking mountain".

SourcesSources http://members.virtualtourist.com/m/33c38/

da47f/ http://www.diggersrealm.com/mt/http://www.diggersrealm.com/mt/archives/000172.htmlarchives/000172.html

http://www.ngdc.noaa.gov/hazard/http://www.ngdc.noaa.gov/hazard/stratoguide/helenfact.htmlstratoguide/helenfact.html

http://pubs.usgs.gov/fs/2000/fs036-00/http://pubs.usgs.gov/fs/2000/fs036-00/

http://wsm.wsu.edu/s/index.php?http://wsm.wsu.edu/s/index.php?id=392id=392

http://www.olywa.net/radu/valerie/http://www.olywa.net/radu/valerie/StHelens.htmlStHelens.html

Goals Today Quickly Review Blue sheet.Quickly Review Blue sheet. Open a new PowerPoint, Open a new PowerPoint, immediately SAVE AS immediately SAVE AS to to

your (F:) drive. your (F:) drive. – Name the file like this: Name the file like this: your names and name of your names and name of

your volcanoyour volcano Set up your seven slides with titles…….Now you

have a place to ‘dump’ your info Begin Researching, copy/paste, ALL WEBSITES

ONTO SOURCE SLIDE TOO!! Check out the class wiki resources. (directions on

BLUE sheet) PLEASE no messing with fonts or colors or

backgrounds today – just focus on finding good info.

How to print off your slides: Click on file, PRINT. On the print Menu, enter that you

want 2 copies. Also, on the print menu, in the lower

left corner where it says ‘Print what:’ choose HANDOUTS.

Click OK.