1.Crater– bowl-shaped formation at the top of a volcano

2.Caldera – large crater formed by the collapse of a volcano during a violent eruption

3.Active Volcano – a volcano that has erupted in the past 10,000 years, may be currently erupting, and is expected to erupt again. 4.Dormant Volcano – a volcano that is not currently erupting, but is expected to erupt again. Papa New Guinea Mount Fuji

5.Composite Volcano - also known as stratovolcano, formed by a combination of lava flows and pyroclastic explosions that form alternating layers. Composite volcanoes are steep and often very tall. Example is Mount Rainier in Washington. Mount Rainier Mount Shasta

6.Cinder-Cone volcano – the most common and smallest type of volcano, usually not more than 300 m (1000 ft) tall, produced by pyroclastic flows. An example of a cinder cone volcano is Paricutin in Mexico.

7.Shield Volcano – volcanoes that form from fluid lava that builds up slowly over time, creating a wide, gently-sloping mountain shaped like a warrior's shield. Examples of shield volcanoes are Kilauea and Mauna Kea in Hawaii.

8.Extinct Volcano – a volcano that has not erupted in the past 10,000 years, and is not expected to erupt again. 9. Hot Spots – Mantle plumes are areas of hot, upwelling mantle. A hot spot develops above the plume.

10.Island Arc – a curved chain of volcanic islands located at a tectonic plate margin, typically with a deep ocean trench on the curved side. 11. Lahar– fast-moving volcanic mudflow composed of ash and water.

12. Pyroclastic Flow - a high-temperature mixture of hot ash and fragments of lava that erupts with great force and speed. 13. Magma Chamber - a reservoir of magma in the earth's crust where the magma may reside temporarily on its way from the upper mantle to the earth's surface.

14. Viscosity – resistance to flow in a liquid or semi-liquid 15. Vent – an opening at the top or side of a volcano where lava erupts. 16. Volcanic Ash - very small (less than 2 mm, or 0.08 in) fragments of material that are ejected in a pyroclastic explosion.

17. Tephra – rock fragments and particles ejected by a volcanic eruption. 18. Volcanic Bomb - a mass of molten lava that is ejected during a pyroclastic explosion and hardens in the air. Volcanic bombs range in size from 2.5 in (64 mm) to several yards (meters) in diameter, and can weigh several tons. 19. Aa – basaltic lava that forms a thick, rough crust 20. Lapilli - Pea- to walnut-size pyroclasts (2 to 64 mm). AshLapilli Volcanic Bombs

21. Pahoehoe - a type of lava that forms a thin, ropy crust when it hardens. 22. Pillow Lava - a smooth, rounded type of lava flow that erupts underwater. Pahoehoe

Research a recent volcanic eruption Research a volcanic eruption occurring within the last 10 years Paste a small picture on your vocab Describe the volcanic eruption (what type of volcano, location, damage