Part 1: What Is a Volcano?

Part 1: What Is a Volcano?


Volcano Center

Part 1: What is a Volcano?

1. How many are active today?

2. What is the “Ring of Fire”?

3. What are the benefits of a volcano?

Part 2: Where do Volcanoes occur?

Where do volcanoes occur?

Part 3: How do Volcanoes Form?

Volcanic activity is closely linked with ______.

What is an island-arc volcano?

About 5% if all known volcanoes form in the middle of plates, not at their edges. Intraplate volcanoes are caused by______.

Describe how the Hawaiian Islands were formed.

Volcanoes called rift volcanoes arise in areas called ______. In these zones plates are moving away from each other spreading or splitting the ______.

Part 4: Types of Volcanoes

List the 6 Volcanoes. Write the characteristics of each type of volcano on your sheet.

Part 5: How do Volcanoes erupt?

What are the two important traits that characterize volcanoes?

______in the magma determine whether the eruption will be explosive or nonexplosive.

______is the measure of a substance’s ability to resist flow.

Part 6: Make your own Volcano?

Try all the variations of gases and silica levels along with the different types of volcanoes. Which combination of gases, silica, and volcano type creates the biggest eruption? Why does it create the biggest eruption?

What was your favorite volcano and why?

Case Studies

Read each case study. Which volcano is the most active? Which is the least active?

Earthquake Center


Why do we not feel most of the thousands of earthquakes that occur every year?


Where do most of the earthquakes occur in the world? In the United States?


Do the fly over of the San Andreas Fault. What type of plate boundary is this?


How do scientists find the epicenter of an earthquake?

What do scientists do to predict oncoming earthquakes?


Trigger the earthquake. How many seismograph readings do you need to find the epicenter.


Try all the variations of ground type and magnitude and create all six earthquakes. Which one produced the most damage? Why do you think it produced the most damage?

Case Studies.

Pick one of the six case studies. Record the location of the earthquake you picked. How does the location of the earthquake relate to how many deaths happened during this earthquake? (Hint: Read the information in the section to help you).

Bill Nye: Earthquake

  1. The earth is broken up into ______plates.
  1. The cracks are called ______and they can store ______and a lot of times will creates an ______.
  1. Scientist use a seismometer to measure the movement of the earth’s surface. This means ______.
  1. What is a seismograph?
  1. What makes the plates move?
  1. What is the epicenter?
  1. The rector scale is to compare the ______of one earthquake to another.

Now write a response to what you have learned from this video.