1. Open a word processing document and copy the questions on this page. Refer to this site if you need help with word processing skills.
  2. Save your document labelled “Volcanoes - your name”.
  3. To help you answer the questions about volcanoes, open this National Geographic website. Find the science section and click on "volcanoes". Use the information found here to complete your answers. Do not copy and paste your answers from the website.
  4. Be sure to answer the questions in complete sentences. You can type your answers under each question.
     


 
 
  1. What are volcanoes?
  2. What is the "Ring of Fire"?
  3. What are the benefits of volcanoes?
  4. On the printout of your map of the World, (see the webpage on earthquakes ) mark the locations of the volcanoes. Use small triangles to mark the volcanoes. You do not need to mark every volcano, just a sufficient number to indicate the general location of volcanoes.
  5. Make sure your map has a legend.
  6. Draw the following volcanoes and explain how they are formed.
    1. Island arc volcanoes
    2. Hot spot volcanoes (give an example)
    3. Rift volcanoes (give an example)
    4. Subduction volcanoes
    5. Continental rift volcanoes
  7. Draw diagrams and make notes on the following volcanoes:
    1. Cinder cone
    2. Composite
    3. Shield
    4. Lava dome
  8. What determines whether a volcanic eruption will be explosive?
  9. What is viscosity? Does fluid lava have a high or low viscosity?
  10. How does silica affect a volcano's viscosity and eruption?
  11. Select "Choose a volcano" to help you to describe the different type of eruptions:
    1. Shield
    2. Composite
    3. Cinder cone
    4. Lava dome