Johnston
Ridge Observatory Programs
Eruption
Talks (20-30 minutes):
Join a ranger
to explore evidence of three powerful events from the
May 18, 1980 eruption. Your students will discover the
largest landslide in recorded human history, the lateral
blast that blew down 230 square miles of forestland,
and searing flows of pumice that poured down into the
Toutle River. Students will also have the opportunity
to learn about the 1980-1986 and 2004-2005 lava dome
building eruptions.
Rock
Indentification Programs (50-minutes):
Students
identify intrusive and extrusive igneous rock samples
by color, texture, or crystal type in these hands-on
programs. Join a ranger to discover the eruptive stories
told by volcanic rocks. Teachers must
download the pre-visit instructional sequence and student
worksheets that are required to conduct
this activity with the ranger. Teachers
must also print off the appropriate number of student
worksheets for your group--worksheets
are not provided by the rangers at Johnston Ridge.
This program is designed for small groups with
hands-on activities. Group sizes over 30 are not
recommended.
Elementary
School Rock Identification Worksheet
Elementary
School Instructional Sequence
Middle
School Rock Identification Worksheet
Middle
School Instructional Sequence
High
School Rock Identification Worksheet
High
School Instructional Sequence
Critter
Cart Talks (20-30-minutes):
Pictures, puppets, skulls, hides
and antlers are used to reveal how an individual animal
species survived the eruption or was able to colonize
habitats created by Mount St. Helens. These talks
explore the importance of all life within the Monument
by demonstrating how individual plants or animals can
profoundly influence the other creatures around them.
Critter topics vary due to rotating seasonal staff schedules.
Topics have included elk, beaver, birds of prey, insects,
salmon, and amphibians.
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