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SCIENCE VOCABULAR STUDY GUIDE – VOLCANOES
RING OF FIRE - Major BELT of volcanoes that rims the Pacific Ocean.
MAGMA - Molten Mixture of rock-forming substances, gases, and water from the mantle. [MM]
LAVA - Liquid magma that REACHES THE SURFACE. (L – Lava/Liquid)
SILICA - Material that is formed from oxygen and SILICON; it is found in magma. (SILIC)
VOLCANO - Weak spot in the crust where magma has come to surface.
MAGMA CHAMBER - Pocket beneath a volcano where Magma Collects. [MC]
HOT SPOT - Area where magma from deep in the mantle MELTS through crust above it.
EXTINCT - A volcano that is UNLIKELY to erupt again.
ISLAND ARC - String of ISLANDS formed by volcanoes along a deep ocean trench. (Has the word Island)
CALDERA - Large hole at the top of a volcano formed when the roof of a volcano’s magma chamber collapses.
DORMANT - Volcano that does NOT show signs of erupting in the near future.
ACTIVE - Volcano that IS erupting or shows signs of erupting in the near future.
CINDER CONE - Steep, cone-shaped hill or mountain made of volcanic ash, CINDERS, and bombs piled up
around a volcano. (Has the word CINDER)
COMPOSITE VOLCANO - Tall, cone-shaped mountain in which layers of lava alternate with layers of ash and
other volcanic materials. (T in composite for Tall volcano)
SHIELD VOLCANO – Wide gently-sloping mountain made of layers of lava and formed by QUIET eruptions.
(SH makes the sh sound like when you tell someone to be quiet – sh)
GEYSER – Fountain of water and steam that builds up pressure underground and erupts at regular intervals.
HOT SPRING – Pool formed by groundwater that has risen to the surface after being HEATED by a nearby body
of magma.
GEOTHERMAL ENERGY – ENERGY from water or steam that has been heated by magma.
DIKE – Slab of volcanic rock formed when magma FORCES itself across layers of rock.
SILL – Slab of volcanic rock formed when magma SQUEEZES between layers of rock. (The one that Squeezes is
SILL – both begin with Letter S)
BATHOLITH – Mass of rock formed when large body of magma cooled inside Earth’s Crust.
VOLCANIC NECK – Deposit of hardened magma in a volcano’s PIPE. The softer rock around it wears away and
exposes it. (Think about how your NECK is like a PIPE – it went down the wrong pipe)
Name
Period
Date
Science Vocabulary Test – Volcano
Matching Column
Directions: Put the letter of the definition on the line that matches the vocabulary word.
________
1.
Cinder Cone Volcano
A. String of ISLANDS formed by volcanoes along a
deep ocean trench.
________
2.
Composite Volcano
B. Volcano that does NOT show signs of erupting in the
near future.
________
3.
Shield Volcano
C. Fountain of water and steam that builds up pressure
underground and erupts at regular intervals.
________
4.
Extinct
D. Pool formed by groundwater that has risen to the
surface after being HEATED by a nearby body of
magma.
________
5.
Dormant
E.
Major BELT of volcanoes that rims the Pacific Ocean.
________
6.
Active
F.
Steep, cone-shaped hill or mountain made of volcanic
ash, CINDERS, and bombs piled up around a volcano.
________
7.
Geyser
G. Tall, cone-shaped mountain in which layers of lava
alternate with layers of ash and other volcanic
materials.
________
8.
Hot Spring
H. Pocket beneath a volcano where Magma Collects.
________
9.
Ring of Fire
I.
A volcano that is UNLIKELY to erupt again.
________
10. Island Arc
J.
Wide gently-sloping mountain made of layers of lava
and formed by QUIET eruptions.
________
11. Magma Chamber
K. Volcano that IS erupting or shows signs of erupting in
the near future.
Name
Period
Date
Science Vocabulary Test – Volcano
Matching Column
Directions: Put the letter of the definition on the line that matches the vocabulary word.
________
12. Volcanic Neck
A. Slab of volcanic rock formed when magma
FORCES itself across layers of rock.
________
13. Sill
B. Liquid magma that REACHES THE SURFACE.
________
14. Geothermal Energy
C. Deposit of hardened magma in a volcano’s PIPE.
________
15. Dike
D. Area where magma from deep in the mantle MELTS
through crust above it.
________
16. Hot Spot
E.
Material that is formed from oxygen and SILICON; it
is found in magma.
________
17. Magma
F.
ENERGY from water or steam heated by magma.
________
18. Lava
G. Weak spot in the crust where magma comes to surface.
________
19. Silica
H. Mass of rock formed when large body of magma
cooled inside Earth’s Crust.
________
20. Volcano
I.
Large hole at the top of a volcano formed when the
roof of a volcano’s magma chamber collapses.
________
21. Batholith
J.
Molten Mixture of rock-forming substances, gases,
and water from the mantle.
________
22. Caldera
K. Slab of volcanic rock formed when magma
SQUEEZES between layers of rock.