Download Volcanoes/REVIEW

Sixth Grade Homework #30
Volcanoes/REVIEW
Due Friday, April 24, 2009
Name ____________________
Teacher __________________
There will be a volcanoes test on Friday, April 24. We will use this homework to review on Thursday and
watch the powerpoints you have been working on. Notebooks will also be due on Friday, April 24 (there
will be no portfolio page for this unit.
PART A – Review pages 204-229 in your textbook and use your notebook
1. What is a volcano? ________________________________________________________________________
__________________________________________________________________________________________
2. What is the difference between magma and lava? _______________________________________________
___________________________________________________________________________________________
3. Where are volcanoes found? _________________________________________________________________
___________________________________________________________________________________________
4. What types of lava are produced by quiet eruptions? _____________________________________________
5. What other eruption is there besides a quiet eruption and how is it different than a quiet eruption? _________
__________________________________________________________________________________________
6. What are the three types of volcanoes? ________________________________________________
7. How does each type of volcano look different from each other? ___________________________________
__________________________________________________________________________________________
Be able to label parts of a volcano. What are some benefits of a volcano? What are some hazards of a volcano?
Vocabulary to cover:
magma chamber, pipe, vent, lava flow, crater, silica, aa, pahoehoe, pyroclastic flow, active, dormant, extinct, hot
spring, geyser, geothermal energy, shield volcano, cinder cone, composite volcano/stratovolcano, caldera, ash,
cinders, bombs, plates, hot spot
8. Volcano A is an example of a ______________________ volcano.
9. Volcano B is an example of a ______________________________.
10. Volcano C is an example of a ______________________________.
Which volcano will have quiet eruptions? ________________________________.
AND
Indicate whether the sentence or statement is true or false. If false, change the underlined word or phrase
to make the sentence true.
____ 1. Liquid magma flows upward through the crust because it is less dense than the solid material around it.
____ 2. A hot spring is hot water and steam that erupts from the ground.
____ 3. When the top of a volcanic mountain collapses, a vent forms.
____ 4. A dormant volcano is erupting or may erupt in the very near future.
_____5. Sulfur is one element that can be mined from a volcanic area.
6. ____ What provides the force that causes magma to erupt to the surface?
a. the silica in the magma
b. dissolved gases trapped in the magma
c. gravity in the lithosphere
d. the density of the magma
7. ____ Which of the following helps to determine how easily magma flows?
a. the amount of silica in the magma
c. the size of the crater
b. the diameter of the pipe
d. the number of vents on the volcano
8. ___ The main hazard from a quiet volcanic eruption is
a. volcanic gases
b. lava flows
c. geysers
d. pyroclastic flows