"Focus" Questions

The following questions appear at the beginning of each segment in the television broadcast, The Case of the Shaky Quake.

Segment 1

• What is a seismologist?
• Describe the layers of the Earth.
• What are two types of clues that help us learn about the Earth's history?

Segment 2

• What are three types of faults?
• What are three types of plate boundaries?
• How does a seismograph measure the shaking of the Earth?

Segment 3

• What is GPS and how is it used?
• What are S and P waves and how do they differ?
• What are two types of scales used to measure earthquakes?

Segment 4

• How many earthquakes occur each year?
• How many seismic stations are necessary to pinpoint the epicenter of an earthquake?
• What are the differences between meteors, meteorites, and meteoroids?