Ocean Vocabulary

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Date:

Instructions: Dive into marine and ocean-related terms — from 'archipelago' to 'bioluminescence' and beyond!

1.
What is an 'archipelago'?
A
An underwater volcano
B
A large whale
C
A chain or group of islands
D
A type of coral
2.
What does 'bioluminescence' refer to in the ocean?
A
Moonlight on the waves
B
The production of light by living organisms
C
Sunlight reflecting off water
D
The color of deep water
3.
What is a 'fjord'?
A
A type of boat
B
A long, narrow inlet with steep cliffs, created by glacial erosion
C
An ocean current
D
A large wave
4.
What does 'tidal bore' mean?
A
A strong wave that travels up a river caused by incoming tide
B
A hole in the ocean floor
C
A boring day at the beach
D
A type of marine drill
5.
What is a 'reef'?
A
A ridge of rock, coral, or sand at or near the surface of water
B
A fishing technique
C
A type of seaweed
D
A deep ocean trench
6.
What does 'pelagic' mean?
A
Relating to the open sea, away from the coast or bottom
B
Relating to freshwater lakes
C
Relating to the shore
D
Relating to frozen water
7.
What is a 'tsunami'?
A
A gentle ocean breeze
B
A type of fish
C
A tropical rainstorm
D
An extremely large ocean wave usually caused by an underwater earthquake
8.
What does 'brackish' mean when describing water?
A
Crystal clear
B
Slightly salty, a mix of fresh and salt water
C
Frozen solid
D
Extremely deep
9.
What is a 'continental shelf'?
A
A museum display
B
The shallow underwater extension of a continent before the ocean floor drops steeply
C
The edge of a tectonic plate
D
A bookshelf about geography
10.
What does 'estuary' refer to?
A
A type of sea creature
B
A seaside resort
C
An underwater cave
D
The area where a river meets the sea and freshwater mixes with saltwater
11.
What is 'plankton'?
A
A type of anchor
B
Wooden boards on a ship
C
Tiny organisms that drift in water and form the base of the ocean food chain
D
Sand on the ocean floor
12.
What does 'maritime' mean?
A
Related to the military
B
Connected with the sea, especially in relation to navigation or commerce
C
Related to marriage
D
A type of weather pattern
13.
What is an 'atoll'?
A
A deep-sea fish
B
A ring-shaped coral reef enclosing a lagoon
C
A toll bridge over water
D
A type of lighthouse
14.
What does 'neap tide' refer to?
A
A tide that only happens at night
B
A very strong tide
C
A tide caused by a storm
D
A tide with the smallest difference between high and low water
15.
What is the 'abyssal zone' of the ocean?
A
The tidal zone
B
The surface layer
C
The warmest part of the ocean
D
The very deep zone of the ocean, typically below 4,000 meters

Answer Key

Question 1

C. A chain or group of islands

Question 2

B. The production of light by living organisms

Question 3

B. A long, narrow inlet with steep cliffs, created by glacial erosion

Question 4

A. A strong wave that travels up a river caused by incoming tide

Question 5

A. A ridge of rock, coral, or sand at or near the surface of water

Question 6

A. Relating to the open sea, away from the coast or bottom

Question 7

D. An extremely large ocean wave usually caused by an underwater earthquake

Question 8

B. Slightly salty, a mix of fresh and salt water

Question 9

B. The shallow underwater extension of a continent before the ocean floor drops steeply

Question 10

D. The area where a river meets the sea and freshwater mixes with saltwater

Question 11

C. Tiny organisms that drift in water and form the base of the ocean food chain

Question 12

B. Connected with the sea, especially in relation to navigation or commerce

Question 13

B. A ring-shaped coral reef enclosing a lagoon

Question 14

D. A tide with the smallest difference between high and low water

Question 15

D. The very deep zone of the ocean, typically below 4,000 meters

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