Scuba
Earth Layers
Latitude/Longitude
Sea floor features
Volcanoes
100

The abbreviation SCUBA

What is Self-Contained Underwater Breathing Apparatus

100

The deepest layer

What is the inner core?

100

The midline for longitude

What is the Prime Meridian

100

The flat area of the ocean floor

What is the abyssal plain?

100

Magma that flows to the earth's surface

What is lava?

200

The substance in the scuba tanks

What is oxygen?

200

The upper layer of earth's mantle, beneath the lithosphere

What is the asthenoshpere?

200

The midline for latitude

What is the equator?

200

Feature formed from erupting volcanoes

What are seamounts?

200

Opening through which volcanic materials erupt

What is a vent?

300

Another name for decompression sickness that scuba divers often get

What are the bends?

300

The layer of only liquid

What is the outer core?

300

The direction in which latitude runs

What is east to west/ horizontally?

300

The deepest parts of the ocean

What are trenches?

300

One of the three volcano types

What is a shield/composite/cindercone?

400

The inventor of the Aqualung

Who is Jacques Cousteau?

400

The outermost layer

What is the crust?

400

The direction in which longitude runs

What is north to south/ vertically?

400

The area where most living things in the ocean live

What is the continental shelf?

400

Molten rock beneath the earth's surface

What is magma?

500

A common scuba pressure hazard

What is barotrauma?

500

The mantle is made of these

What are silicates?

500

The city that the prime meridian passes through

What is Greenwich England

500

The feature that begins at the continental shelf and plunges down

What is the continental slope?

500

A long curved chain of volcanic islands

What is a volcanic island arc

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