Lava Logic
Volcano Varieties
100

This property of lava determines how easily it flows.

What is viscosity?

100

This type of volcano has broad, sloping sides and erupts with runny lava.

What is a shield volcano?

200

Mafic lava is low in this mineral, making it flow more easily.

What is silica?

200

This tall, steep-sided volcano erupts explosively due to trapped gas in its magma.

What is a stratovolcano? (Requires understanding of viscosity and gas trapping)

300

This type of lava is the hottest, reaching up to 1200°C, and flows quickly.

What is mafic?

300

These small hill-sized volcanoes form from short, explosive eruptions of gas-charged lava.

What are cinder cones?

400

High-viscosity lava can lead to these two dangerous eruption products.

What are pyroclastic flows and ash clouds?

400

Name the two volcano types that can generate pyroclastic flows.

What are stratovolcanoes and lava domes?