Type
Crossword
Description

what makes a reef coral
nudibranches are a type of sea slug
where they live ocean
the type of water they live in salt water
they are very colorful
what makes a ocean water
they live in all the ocean (blank) zones
they can live in all (blank) hint it starts with D depths
they can live up to 1 year
they can kina look like sea (blank) hint food sea cucumber

Aquatic Ecosystems Crossword Puzzle

Type
Crossword
Description

What measures the amount of salts dissolved in water? salinity
Which aquatic layer has enough sunlight for photosynthesis? photic zone
Which aquatic layer is below the the photic zone? aphotic zone
Which aquatic layer is located at the very bottom of a body of water? benthic zone
What is the shallow, near-shore part of the photic zone called? littoral zone
What part of the photic zone is home to a rich amount of invertebrates? limnetic zone
What are the areas of land that are flooded with water for part of the year called? wetlands
What are the areas that are located near a river and are periodically flooded called? flood plain
What forms when freshwater from land drainage meets water from an ocean or inland sea? estuary
What is the vertical flow of cold, nutrient rich water towards the surface of a body of water? upwelling
What transports warm water rich in dissolved gases from the surface of the ocean to the depths of the ocean? downwelling
What are aquatic ecosystems with a salinity of 0.5 to 30 ppt called? brackish
What is an isolated, U-shaped body of water called? oxbow lake

Biosphere to ecosystems Crossword

Type
Crossword
Description

lowest region of the atmosphere, from earth's surface to 6-10km troposphere
a secondary consumer carnivore
water zone at the bottom of the sea benthic
uppermost water zone of the sea photic
a primary consumer herbivore
all the animal and plant populations in an area community
type of reef formed from calcium carbonate of tiny sea animals coral
regions of the earth where life can exist biosphere
a distinct region of the earth typically defined by climate and dominant vegetation biome
zone of open ocean away from the shore pelagic

Sea Animals Crossword

Type
Crossword
Description

a large edible sea snail of coastal waters Abalone
a bright-colored fish of coral reefs Angelfish
the world’s largest marine animal Blue Whale
an aggressive shark that can thrive in both saltwater and fresh water Bull Shark
an intelligent, vocal, social sea mammal Dolphin
a flatfish, camouflaged to match the ocean bottom, with both its eyes located on one side Flounder
one of the largest living animals, up to 43 feet long, found in the world’s deep oceans Giant Squid
a large, aggressive shark with a white belly and gray back Great White Shark
a majestic-looking black-and-white whale with long, wide pectoral fins Humpback Whale
tiny shrimp-like crustaceans, very numerous in all oceans, important food for other creatures Krill
a jawless fish with an eel-like body,many are bloodsuckers Lamprey
a fish with seaweed-like appendages for camouflage Leafy Sea Dragon
a venomous fish with red and white stripes and spiny dorsal fins Lionfish
a large crustacean with a muscular tail and two large claws Lobster
an extinct giant shark, one of the largest predators ever, up to 65 feet long Megalodon
a two-shelled mollusk; most attach themselves to shoreline rocks with tough threads Mussel
an Arctic whale whose males have a long tusk Narwhal
a slender-bodied, long-jawed fish of shallow water Needle Fish
a colorful marine slug Nudibranch
play a major role in the world’s food chains and chemical cycles Plankton
a spiny tropical marine fish that can inflate itself Porcupine Fish
a name for the larger kinds of shrimp Prawn
a small, earless seal native to the Arctic, that makes breathing holes in sea ice Ringed Seal
a soft, sausage-shaped echinoderm with leathery skin and a tentacled mouth Sea Cucumber
a small, upright-swimming fish (it really is a fish) with a horse-like head Sea Horse
a large, eared seal with long limbs acting as flippers Sea Lion
seven species of turtles that have flippers for limbs; they may live for hundreds of years Sea Turtle
predatory star-shaped echinoderms that crawl on tiny tube feet Starfish
a large, migratory fish with a sword-like snout Swordfish
a large shark (up to 16 feet) of tropical and subtropical oceans, with dark stripes Tiger Shark
an Indo-Pacific fish with a horn-like protrusion on its forehead Unicornfish
a large Arctic marine mammal with long tusks and whiskers Walrus
Latin for "swordfish," the genus name for the swordfish group Xiphias
has contrasting orange, white, and black colors Clownfish
also known as a hippo tang, is characterized by its contrasting black and almost neon blue colors Regal Tang
is without a doubt one of the ugliest fish in the sea, stone-like appearance Stonefish
is a favorite among aquarium hobbyists. This shark gets its name from its leopard-like spots Leopard Shark
it is the largest fish in the world Whale Shark

Invertebrates Crossword

Type
Crossword
Description

A bee that collects honey. Honeybee
This bug eats through wood. Termite
Makes hissing noises. Hissing Cockroach
'Flower" Mantis Orchid Mantis
Poisonous butterfly. Monarch Butterfly
Females of this species have a red hourglass shape under the abdomen. Black Widow
Lacks a respiratory system and breathes through its skin. Earthworm
The largest of this species are found in tropical waters. Sea Anemone
Has a star shape. Starfish
A group of this animal is called a smack. Jellyfish
Among the most simple of multi-cellular organisms. Sponge
Are very social despite their name. Hermit Crab
Are able to rapidly dart backwards by flexing their body. Shrimp
The conditition of being infected with this species is called taeniasis. Tapeworm
Majority species of this worm are blood-feeding. Leech
Has 8 tentacles. Octopus
Have spiny shells for protection. Sea Urchin
Live in the sand upside down. Clams
The only difference between this animal and a slug, is it has a shell. Snail
The only difference between this animal and a snail, is that it does not have a shell. Slug
Has 6 tentecles. Squid
Breathe via their anus. sea cucumber
Can manually control their buoyancy. cuttlefish
You can get pearls from this mollusk. Oyster
The female of this animal can only mate after she has just molted. Lobster
This species makes up the Great Barrier Reef. Coral
Largest group of living organisms known to science. Beetle
Bleed from their knees when threatened. Ladybug
Can turn their head a full 180 degrees. Praying Mantis
Capable of carrying mass 50 times their own body weight. Ants
Become a butterfly. caterpillar
Only males of this species chirp. Cricket
This insect is aquatic during the larval stage. Dragonfly
All species of this animal are venomous. Scorpion
Defend themselves by throwing barbed hairs at attackers. Tarantula
Does not have a heart or gills. Barnacle
Grow a hair-like substance to attach them to rocks. Mussel

Earth's Oceans Crossword

Type
Crossword
Description

deep narrow valleys of the ocean floor trench
large, flat basin area of the ocean floor abysassal plain
underwater mountain ranges with sea-floor spreading mid-ocean ridge
underwater volcano or mountain sea mount
steep drop from the continental shelf to the continental rise is called continental slope
The gently sloping area from the shoreline to the continental slope is called continental shelf
is a sound signal bounced off the ocean floor to measure depth sonar
what percent is the earth covered with water 75
what percent of the earth is covered by land 25
what percent of the earth's water has salt in it 71
what percent of water is fresh water 4
This describes how much salt is in the water salinity
rainfall and river runoff create more or less salinity in water less
ice formation and evaporation make more or less salinity in water more
what is water pressure? force
what is the amount of matter in an object density
is a sound signal used by sea and land creatures echolocation
tides, currents, and waves are types of motion
how are surface currents formed wind
salinity, temperature, and constant movement create what? deep-water currents
a powerful warm, swift moving atlantic ocean surface current that flows along the coast of the eastern US and up over Europe gulf stream
what continent is warmer because of the gulf stream europe
what force creates tides gravity

Marine Ecosystem Crossword

Type
Crossword
Description

Known as nature soup, decomposed marsh grass Detritus
Plants that are adapted to grow, it is either floating on the surface or submerged in mud Hydrophyte
very simple plants that live in water; the size ranks from microscopic plankton to meters-long kelp Algae
poison produced by a living organism Toxin
Where freshwater and salt water meet (coastal area) Estuary
Under layer; something to hold on to or attach to Substrate
an animal that eats another animal for food Predator
Interaction of all living things in an area community
an alteration of adjustment by a species improves the relationship in the environment Adaptation
special blades on the bottom of the kelp above the hold fast that produce spores sporophylls
the top of the kelp forest where blades rest on the surface of the water canopy
a animal that eats plants herbivore
Forms an symbiotic relationship with corals zooxanthellae
a long coral reef near the shore (parallel to it) barrier reef
an island consisting of a circular coral reef surrounding a bay atoll
rise and fall of Earth's water on its coastline Tides
total amount of dissolved salts in a water sample Salinity
algae and animals that float in water which are carried by waves and the currents Plankton
a large stream of (waves) moving water the flows through the oceans Current
rotate between submergence and non submergence because of the tidal waves intertidal
organisms belonging to the animal kingdom. zooplankton

Ocean Crossword Puzzle

Type
Crossword
Description

Someone who studies the ocean Oceanographer
Surface layer of the ocean that receives sunlight Photic zone
D=m/V Density
Dissolved salts in water Salinity
Transferred energy and wind causes... Waves
periodic rise and fall of the sea level Tides
Body of water or air moving in a definit direction Currents
Layer of the ocean that does not receive sunlight Aphotic zone
Arrangement of the natural and artificial physical features of an area. Topography
Place not explored/ where no life is found Dead zone
The shore of a sea or ocean coast
What is a series of waves called? train
Foaming sheets of water that roll up and down the are called... swash
Highest point of a wave Crest
Lowest point of a wave trough

Zoology Crossword

Type
Crossword
Description

Mean none A
What does fake mean Suedo
A superclass of marine inverterbrates including thress classes Stelleroidea
A long spined sea urchins on a coral reef at Contadora island, off the pacific Echinoidea
An abundant and diverse group of worm-like and usually soft-bodied echinoderms. They are found in nearly every marine environment, but are most diverse on tropical shallow-water coral reefs. Holothuroidea
A basic body plan in which the organism can be divided into similar halves by passing a plane at any angle along a central axis, characteristic of sessile and bottom-dwelling animals, as the sea anemone and starfish. Radial Symmetry
symmetry in which similar anatomical parts are arranged on opposite sides of a median axis so that only one plane can divide the individual into essentially identical halves Bilateral symmetry
organ job in echo system Niche
Any animal that possesses coelom. Having a coelom supplement-include most vertebrates and other bilateral animals Coelomates
Jelly substance in between the cell layers Mesoglea
Any animal without a body cavity, such as a flatworm Acoelomate
The course of developmental changes through which an organism passes from its inception through the stage at which it reproduces. Life cycle
An evolutionary trend in the animal kingdom toward centralization of neural and sensory organs in the head or anterior region of the body Cephalization
Radially symmetrical marine invertebrates including e.g. starfish and sea urchins and sea cucumbers Echinodermata
The most primitive animals are asymmetrical True

Oceans Crossword Puzzle

Type
Crossword
Description

What is the flat region on the ocean floor called? AbyssalPlain
What is a deep valley on the ocean floor called? Trench
What are the active swimmers in a body of water called? Nekton
What are the tiny organisms called that drift in the ocean? Plankton
What is a community of organisms that live on or near a ''Benthic Zone?'' Benthos
What is an underwater mountain called? Seamount
What is a large stream of moving water through the oceans called? Current
What is energy that moves through a body of water? Wave
What is the daily rise and fall of ocean water called? Tide
What is the salt content of water called? Salinity
What is the slope that connects the continental shelf and the abyssal plain called? ContinentalSlope
What is the part of the ocean that starts at the coastline and ends at the sloping part of the ocean floor? ContinentalShelf

oceanography Crossword

Type
Crossword
Description

found at depths between 3000 and 6000 m abyssal plain
a long, narrow, deep depression in the ocean floor, typically one running parallel to a plate boundary and marking a subduction zone. trench
aquatic animals that are able to swim and move independently of water currents. nekton
are a diverse group of organisms that live in the water column of large bodies of water and that cannot swim against a current. plankton
the flora and fauna found on the bottom, or in the bottom sediments, of a sea, lake benthos
a mountain rising from the ocean seafloor that does not reach to the water's surface seamounts
directed movement of seawater generated by forces acting upon this mean flow currents
a disturbance in the ocean that transmits energy from one place to another. waves
measure of all the salts dissolved in water. salinity
The gravitational attraction of the moon causes the oceans to bulge out in the direction of the moon. tides
consists of muds and silts, and is often crosscut by submarine canyons. continental slope
underwater landmass which extends from a continent continental shelf