Download Volcanic Landforms

Name: _____________________________________ Date: ________ Period: ________
Volcanoes!
Chapter 9
Section 1: Volcanic Eruptions
1. What is a volcano? _____________________________________________________
2. Explain what makes a volcano erupt. ________________________________________
___________________________________________________________________
3. What are the creative forces of volcanoes? __________________________________
___________________________________________________________________
4. What is the most common type of eruption? __________________________________
___________________________________________________________________
5. Fill in the venn diagram comparing and contrasting explosive and non-explosive eruptions.
Minimum: TWO facts per section.
Explosive Eruptions
Non-Explosive Eruptions
6. If the water content of magma is ______________, an explosive eruption is more likely.
7. Explain how water and magma create explosive eruptions.
___________________________________________________________________
___________________________________________________________________
___________________________________________________________________
8. Magma that has a high silica content also causes ______________________ eruptions.
9. Explain how silica-rich magma creates explosive eruption.
___________________________________________________________________
___________________________________________________________________
___________________________________________________________________
10. What is pyroclastic material? _____________________________________________
___________________________________________________________________
___________________________________________________________________
11. What is viscosity? _____________________________________________________
___________________________________________________________________
12. Fill in the four types of lava and describe each one:
Type of Lava
Description
13. Label the volcano with the following terms: magma chamber, vent, lava flow, pipe
14. Fill in the chart about the different types of pyroclastic material
Type of
Description of Material
Size of Material
Small
Medium Large
Pyroclastic
Material
15. Describe a pyroclastic flow. _____________________________________________
___________________________________________________________________
___________________________________________________________________
___________________________________________________________________
Section 2: Effects of Volcanic Eruptions
16. Fill in the chart below about different types of volcanoes!
Type of
Volcano
Shield
Cinder Cone
Composite
What is it
made of?
Describe what is it shaped
like and draw a simple
picture.
Provide an
example.
17. Using the volcano identification document on Mrs. Poole’s Blog, identify the type of
volcano in each figure:
Figure 1: _______________________
Figure 4:_______________________
Figure 2:_______________________
Figure 5: _______________________
Figure 3:_______________________
Figure 6: _______________________
Volcanic Landforms
What are the 3 types of landforms produced by volcanic activity?
18.__________________
19.__________________
Type of What is it and
Volcanic what does it
Landform look like??
Provide an
example.
20. _________________
Describe how
it forms.
Answer the
random
question
If lava hardens in
the crater, what
happens during the
next eruption?
Crater
How are hot
springs heated?
Caldara
Provide an
interesting fact.
Lava
Plateau
Section 3: Causes of Volcanic Eruptions
21. Magma forms ________________________________________________and in the
_______________________________________________ where the
_______________________________________________________.
22. What is the upper mantle made of? _______________________________________
__________________________________________________________________
23. The rock is hot enough ___________________, but remains ____________________
because __________________________.
24. The most common cause of magma formation is ______________________________.
25. Where does magma often form? _________________________________________
______________________________ Where pressure is _____________________.
26. What does the magma do because it is less dense? ____________________________
27. Where do a large number of volcanoes occur? _______________________________
28. Where is the Ring of Fire located? _______________________________________
29. At plate boundaries plates either: ________________________________________
__________________________________________________________________
30. 80% of volcanoes form_________________________________, 15% of volcanoes
occur where ______________________________________________________
31. Complete the chart below:
Type of Boundary
How plates move
Divergent
Convergent
32. What is happening at the mid-ocean ridges? _________________________________
___________________________________________________________________
33. What is formed at mid-ocean ridges? _______________________________________
34. Most volcanic activity on Earth occurs at ____________________________________
35. What happens when the oceanic plate collides with a continental plate?
___________________________________________________________________
___________________________________________________________________
36. Why does the oceanic crust go under the continental plate?
___________________________________________________________________
___________________________________________________________________
37. Identify the type of boundary and describe what is happening in each picture in the chart
below: