WorksheetsChapter 8: Life in the Fathoms (Amplify)
Total questions: 10
Worksheet time: 5mins
What are the two big defining features of the open ocean?
Its temperature and fish diversity
Its size and ocean currents
Its coral reefs and sandy beaches
Its mangrove forests and kelp
What is the main purpose of ocean currents for organisms?
To provide hiding places
To help organisms travel for food, resources, or warmer waters
To make the ocean salty
To change the ocean color
What does the term “plankton” refer to?
Only tiny animals in the ocean
A single species of ocean plant
Many species that drift with the ocean current
Deep sea predators
What are phytoplankton?
Animals that eat other fish
Plants of the plankton world that photosynthesize
Large squid that hunt at night
Predators at the top of the food chain
What are nekton?
Organisms that cannot move at all
Organisms that swim against the current
Plants that drift with the waves
Dead organisms at the bottom of the sea
How do orcas travel long distances in the open ocean?
By hiding in the deep sea
By riding waves like surfboards
By staying in one coral reef
By swimming in pods and following prey migrations
What is marine snow?
Snow that falls into the ocean from the sky
Ice floating in the ocean
Scraps and waste from upper ocean organisms that sink
Tiny fish that migrate at night
What is a hydrothermal vent?
A deep-sea vent that releases hot water
A cold spring on the ocean floor
A rocky underwater cave
A hole filled with bubbles
Why do marine biologists work with local communities?
Build underwater labs
Learn to fish better
Teach people to protect oceans
Study languages
Why do marine biologists say the job is worth it?
Paid a lot of money
Explore unseen oceans
Always dry and safe
No long hours
