Volcanoes

See how many answers you can get right with this Volcanoes quiz:

1. Volcanoes form when:

Magma reaches the Earth's surface, causing eruptions of lava and ash An earthquake reaches the Earth's surface, causing tremors and aftershocks

2. A magma chamber is:

A collection of magma inside the Earth below the volcano The molten lava at the peak of a volcano Pockets of lava trapped on the side of a volcano

3. What are the 3 different states of a volcano?

Open, explosion and furnace Leaking, alive and resting Active, dormant and extinct Exploding, running and closed

4. Composite volcanoes are made up of:

Alternating layers of lava and ash Alternating layers of rock and fossils Alternating layers of lava and sand

5. What is a caldera?

A caldera is the remnant of an old volcano A caldera is a massive crater-like depression A caldera is a linear volcanic vent through which lava erupts A caldera is a large underground pool of liquid rock found beneath the surface of the Earth

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