Types of Volcanoes in Science Grade 9 Quarter 3 Module 1

What is the difference between a shield volcano and a stratovolcano?

• The main difference is in their shape and composition.

• The main difference is in their location on Earth.

• They are both formed by the same geological process.

• The difference lies in their eruption style only.

Name one example of a shield volcano.

• Grand Canyon

• Mount Everest

• Mauna Loa

• Eiffel Tower

Explain how a cinder cone volcano is formed.

• A cinder cone volcano is formed by melting ice caps

• A cinder cone volcano is formed through explosive eruptions of lava, ash, and rock fragments.

• A cinder cone volcano is formed by meteor impacts

• A cinder cone volcano is formed by gentle lava flows

What are the characteristics of a composite volcano?

• Sharp peaks, solid rock layers, minimal volcanic activity

• Gentle slopes, single layer of lava flows, non-explosive eruptions

• Flat terrain, no visible layers, constant lava flow

• Steep-sided cones, alternating layers of lava flows, volcanic ash, explosive eruptions

How do volcanic eruptions contribute to the formation of different types of volcanoes?

• By releasing magma from the Earth's mantle through the crust, which determines the shape and characteristics of the volcano.

• By causing earthquakes that shape the volcano's structure

• By creating underground tunnels that connect different types of volcanoes

• By attracting lightning strikes that alter the volcano's composition

Describe the structure of a caldera volcano.

• A caldera volcano has a wide, flat base

• A caldera volcano has a single, small vent

• A caldera volcano has a tall, pointed peak

• A caldera volcano has a large volcanic crater formed by the collapse of a volcano into itself after a major eruption.

it is the opening or mouth of volcano, that is funnel-shaped where lava emitts

• summit

• crater

• main vent

• secondary vent

it is where magma store before volcanic erruption.

• lava flow

• magma chamber

• magma vent

• summir

explosiveness of volcano depends on its....

• viscosity rate

• chemical composition

• silica content

• temperature

if a magma flows rapidly, what can you say about its viscosity?

• low viscosity

• high viscosity

• intermediate viscosity

• both b and c