Volcanoes Worksheet

What is a volcano? Fill in the blank: A volcano is an opening in the Earth's crust that allows ______, hot ash and gases to escape.

• magma

• water

• sand

• ice

Types of volcano include:

• Shield, composite, cinder cone, and lava dome

• Igneous, sedimentary, and metamorphic

• Earthquake, tsunami, and landslide

• Crater, caldera, and plateau

Which of the following is an example of a composite volcano?

• Mauna Loa

• Mount Etna

• Mount Fuji

• Kilauea

Fill in the blank: ________ volcanoes tend to have gentle slopes and their runnier lava spreads and hardens over a wider area.

• Shield

• Cinder cone

• Stratovolcano

• Caldera

A volcanic eruption is:

• The sudden release of magma, ash, and gases from a volcano

• The movement of tectonic plates under the Earth's surface

• The process of rock formation

• The cooling of lava on the Earth's surface

Most volcanic eruptions are caused by pieces of the Earth's crust, called ________, moving towards each other.

• tectonic plates

• sedimentary rocks

• ocean currents

• weather fronts

Some volcanoes, like Mauna Loa in Hawaii, are caused by hot spots in the Earth's crust. Do these volcanoes erupt violently?

• True

• False

Which of the following is NOT a product of a volcanic eruption?

• Pyroclastic flows

• Ash clouds

• Volcanic bombs

• Rainbows

What are pyroclastic flows?

• Fast moving clouds of hot ash, gas and rock

• Small pieces of rock and glass

• Large bits of very hot rock

• Streams of water

Fill in the blank: Volcanic bombs are ________ bits of very hot rock blown out of a volcano.

• large

• tiny

• cold

• liquid