2. When subduction occurs, the crust is weakened by the collision, and cracks can form. Lava can break through the cracks and form a volcano!

3. Parts of a volcano:

4. Magma Chamber: As magma flows out of the mantle, it collects in a big underground pool Magma: The hot, molten rock that comes out of the mantle.

5. Pipe: Narrow, vertical crack that brings magma to the surface.

6. Side Vent: Weak side cracks in the volcano can allow lava to come out the sides.

7. Vent: The main exit for magma to leave the pipe.

8. Lava: Magma that reaches the surface.

9. Crater: The bowl shaped mouth of the volcano.

11. A volcano is a lot like a person! Stomach = magma chamber Puke = magma/lava Esophagus = pipe Neck/Throat = vent Mouth = crater

12. Types of Volcanic Eruptions: Quiet Eruption = magma is runny and oozes or pours out of the vents, forming a swift lava flow!

13. Though quiet eruptions might seem fairly harmless, the lava flows fast and burns or melts whatever it touches!

14. Explosive Eruption = magma is thick and sticky, clogs the pipe and builds up pressure until it explodes!

15. This can form a Pyroclastic Flow (ash, cinders, and boulders blow out!)

16. If you don’t get hit by falling chunks of rock, the ash could still choke or bury you!