Volcanoes Worksheets | Worsheets library - Free Printable

Let’s solve this step by step.

First, we need to label the parts of the volcano using the words given:
lava, ash, magma, crater, central vent, side vent

Looking at the diagram:

- The crater is the bowl-shaped opening at the very top — that’s where stuff comes out during an eruption.
- The central vent is the big tube going straight up from deep inside the Earth to the crater — it’s the main path for magma.
- A side vent is a smaller tube branching off the central vent — sometimes lava or gas escapes here too.
- Magma is the hot melted rock *inside* the Earth (before it erupts).
- Lava is what we call magma once it reaches the surface and flows out.
- Ash is the cloudy stuff flying into the air during an eruption — tiny particles of rock and glass.

Now let’s match them to the boxes in the image (from top to bottom on each side):

Left side (top to bottom):
1. Top box → points to the cloud of particles → ash
2. Middle box → points to the red flow coming out the side → lava
3. Bottom box → points to the big underground pool → magma

Right side (top to bottom):
1. Top box → points to the opening at the top → crater
2. Middle box → points to the small branch tube → side vent
3. Bottom box → points to the main tube going up → central vent

Now, fill in the blanks below:

> Molten rock called __________ comes from the Earth's mantle.
→ That’s magma (it’s molten rock underground)

> When it reaches the surface of the Earth scientists call it __________.
→ Once it’s on the surface, it’s called lava

> Clouds of tiny particles emitted from a volcanic eruption are called __________.
→ Those are ash

> The largest tube through which magma travels to the surface is the __________ of a volcano.
→ That’s the central vent

> Sometimes lava comes out of a smaller tube called a __________.
→ That’s a side vent

> The __________ is the bowl-shaped opening at the top of a volcano.
→ That’s the crater

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Final Answer:

Labeling the diagram (left side, top to bottom):
ash, lava, magma

Labeling the diagram (right side, top to bottom):
crater, side vent, central vent

Fill in the blanks:
magma, lava, ash, central vent, side vent, crater