Sea Creatures
Ocean Ecosystems
Earth's Waters
True/False
Ocean Conservation
100

The largest animal in the ocean

What is a blue whale?

100
The most diverse ocean ecosystem - "rainforest of the sea"
What is coral reefs?
100

The number of world oceans

What is ONE global ocean? 

There is one big ocean with many different ocean basins like the Pacific, Atlantic, Southern, Arctic, Indian.

100

True/False: Sharks can NOT be identified by their tooth shape.

What is true?
100

The system scientists use to identify species based on characteristics when the species is unknown.

What is a dichotomous key?

200

The adaptation that allows animals to find food/navigate in the deep dark ocean

What is bioluminescence?

200

The area where freshwater rivers and streams meet the salwater ocean and create brackish water. Very productive ecosystems that are breeding/feeding grounds and migration pitstops.

What is an estuary?

200

The celestial body(ies) responsible for tides on earth

What is the SUN and MOON?

200

True/False: Most of the world's population lives in coastal areas.

What is True?

200

Percentage of the ocean that has been explored

What is 20%?

300
Chemical compound that makes up coral reefs and shells of gastropods/bivalves.

What is calcium carbonate?

300

These two colors are not visible at the bottom of the ocean in the aphotic zones

What is red and orange?

300

Processes that help build barrier islands (2 of them)

What is erosion and deposition?

300

True/False: Plastic will eventually decompose completely and return nutrients to the environment.

What is false? 

Plastic never fully decomposes only breaksdown over time into smaller pieces called microplastics, and can cause harm to animals and human health.

300

Event that is causing rising temperatures and sea levels, ocean acification, melting ice caps, and extreme weather events

What is climate change?

400

Three creatures that might be found attached to a floating dock or docked ship? 

What are barnacles, oysters, and mussels?

other acceptable answers: tunicates (Sea squirts), algae, shrimp, crabs, sponges

400

Three ecosystem services the marsh wetlands provide.

What is filtration (maintaining healthy water quality), absorption (provide a barrier to mainland for flood waters and absorb excess water), and food supply (provide large amounts of seafood i.e. blue crab)?

400

The number of zones that classify how light is penetrated through the ocean

What is FIVE ocean zones?

400

True/False: Only a specific suborder of marine mammals can echolocate. 

What is true? Only Odontocetes (toothed whales) can echolocate. Lots of marine animals make noises but are primarily used for social reasons, whereas echolocation is used for feeding strategies.

400

Molecule that is responsible for trapping heat in our atmosphere but in excess causes global warming

What is carbon dioxide?

500

Sensory organ found in fish along the entire length of their body that helps sense pressure changes and movement in the water around them.

What is a lateral line?

500

These ecosystems are characterized by "trapped seawater" but are abundant with sea creatures like sea anemones, sea stars, crabs, oysters, snails, barnacles, urchins, mussels and more. The inhabitants of this ecosystem must endure constantly changing conditions multiple (hint: 4 times) times a day.

What is a tide/tidal pool?

500

Percentage of water on earth that is freshwater

What is 3%? 

97% saltwater 

3% freshwater

2.5% of freshwater is frozen 

0.5% available to use

500

True/False: small fish and crustaceans are at the base of the ocean food web. 

What is false? Phytoplankton are the base of the ocean food web. 

500

Four services the ocean provides for humans.

What is oxygen, food, and energy, jobs

other acceptable answers: minerals, medicines, transportation highway, cultural heritage, recreation, discovery, inspiration.

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