Mountain Models
What is the highest point of a mountain called?
Peak
What type of map shows the shape and elevation of land?
Topographic map
What kind of slope rises sharply?
Steep slope
What natural event changed Mount St. Helens in 1980?
Volcanic eruption
What is a fossil?
Evidence or remains of a living thing from long ago.
What is the bottom of a mountain called?
Base
What are the lines on a topographic map called?
Contour lines
What kind of slope rises slowly?
Gentle slope
What happened to the top of Mount St. Helens during the eruption?
Part of the mountain collapsed.
Name one fossil we used in our rock-layer model.
Shell / leaf
What does elevation tell us?
How high a place is above sea level.
What do all points on the same contour line have in common?
They have the same elevation.
What do contour lines close together show?
A steep slope
Did Mount St. Helens become taller or shorter after the eruption?
Shorter
Are the bottom rock layers usually older or younger?
Older
What do the different layers of our foam mountain model represent?
Different elevations/heights.
What is a contour interval?
The difference in elevation between neighboring contour lines.
What do contour lines far apart show?
A gentle slope
What can before-and-after pictures of Mount St. Helens help scientists understand?
How the mountain's shape and elevation changed.
Are the top rock layers usually older or younger?
Younger
If one mountain layer is 11,000 feet and the next is 11,500 feet, what is the difference in elevation?
500 feet
If one contour line is 200 feet and the next is 250 feet, what is the contour interval?
50 feet
If you wanted to hike an easier trail, would you choose close-together or far-apart contour lines? Why?
Far-apart lines because they show a gentler slope.
Where do many volcanoes and earthquakes occur on world maps?
Near the edges of tectonic plates, including around the Pacific Ocean.
If a shell fossil is in a lower rock layer than a leaf fossil, which fossil is probably older?
Shell fossil