SCIENCE 9-THIRD QUARTER-FIRST SUMMATIVE TEST

Which of the following statements describes a volcano?

• A large storm with very high speed winds.

• A large cloud that generates rain, hail and lightning.

• A violent shaking of the Earth that occur when two tectonic plates bump into each other.

• An opening on the earth’s surface through which molten rocks, lava, volcanic ash, debris, and gases from the magma chamber reach the earth’s surface.

Which type of volcano is formed from multiple eruptions thousands of years apart, layered lava and volcanic materials, or composites of more than one vent?

• Cinder Cone

• Lava Dome

• Shield

• Stratovolcano

Which of the following is an active volcano in the Philippines

• Apo in Davao

• Isarog in Camarines Sur

• Bud Datu in Sulu

• Kanlaon in Negron Oriental

Which of the following volcanic eruptions is a stream-driven eruption as the hot rocks come in contact with water?

• Hydrothermal/Phreatic

• Phreatomagmatic

• Strombolian

• Vulcanian

Which statement is TRUE about Lava Dome Volcano?

• Dominant volcanoes along the Pacific Ring of Fire.

• Formed by the accumulation of lava that oozes out.

• Found within the crater or on the sides of large composite volcanoes.

• They have a steep slope, wide crater and are the most abundant of the four major volcano types.

Active volcanoes are those that have a record of eruption or those that erupted 10,000 years ago based on analysis of their materials.

• TRUE

• FALSE

The Philippine is located along the Pacific Ring of Fire.

• TRUE

• FALSE

Pinatubo Volcano in Zambales is an example of Pilinian Eruption

• TRUE

• FALSE

Taal Volcano in Batangas is an example Strombolian Eruption

• TRUE

• FALSE

Vent is a passageway through which magma travels to reach the Earth’s

surface.

• TRUE

• FALSE