Understand that not all volcanic eruptions are the same: some flow gently (effusive) and some explode violently (explosive), depending on the properties of the magma, and that volcano shape is related to eruption type
A first look
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Question 1 of 3
Volcano X erupted very runny lava with little trapped gas for many years, then had one short blast that sent out a cloud of ash. Volcano Y has erupted thick, bubbly magma many times. Which volcano is more likely to have a steep, cone‑shaped mountain?
Question 2 of 3
A volcano that has broad, gently sloping sides most likely results from which type of eruption?
Question 3 of 3
Lena is studying two volcanoes in a science project. Volcano A has magma that flows as easily as water and contains only a tiny amount of trapped gas. Volcano B has magma that moves as slowly as thick honey and is filled with many gas bubbles. Which description correctly matches each volcano’s likely eruption style and the shape it will build?
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