Science 9 – 3Q-M1L1 –
“Volcanoes and Volcanic Eruptions”
Test 1. Identification:
1. It is the Study of Volcanoes. VOLCANOLOGY
2. The Philippine Government Agency responsible for
studying, monitoring, volcanic activities and
earthquakes as well as providing public safety
warnings. PHIVOLCS
3. A VOLCANO is an opening in the earth’s crust.
4. It is the region of the earth characterized by active
volcanoes and frequent earthquakes. PACIFIC RING
OF FIRE
5. The process of releasing magma from the volcanoes’
crater. VOLCANIC ERUPTION
6. What is the estimated count of volcanoes
found/located in the Philippines? 300 VOLCANOES
7-8. Give at least 2 examples of pyroclastic
materials._________
9. A type of volcano that has erupted within the last
10, 000 years.____________
10. These are volcanoes that are found on land. _______
11. These type of volcanoes are made up or formed from
pyroclast or fragments of volcanic rock that forms a
steep slopes around their wide crater.
A. Composite Volcano
B. Shield Volcano
C. Cinder Cones
12. These are volcanoes found in the ocean floor.
___________
13-14. Give 2 factors that makes a volcano explosive.
15. These are volcanoes that have not erupted in a long
period of time but are expected to erupt again in the
future.