Marine Ecosystems
What ecosystem has the most sunlight?
Shallow ocean
What is a trench?
A very deep part of the ocean
What does ROV stand for?
Remotely Operated Vehicle
Is ocean water salty or fresh?
Salty
What powers many underwater machines?
Electricity
What colorful ecosystem is home to many sea animals?
Coral Reef
What comes out of hydrothermal vents?
Hot water and minerals
Do ROVs carry people?
No
What does pH measure?
How acidic or basic something is
What tool helps submarines see above water?
Periscope
Why can’t plants grow deep in the ocean?
There is no sunlight
What happens to pressure as you go deeper underwater?
It increases
Why do scientists use ROVs?
To safely explore deep underwater
What is salinity?
The amount of salt in water
Why do submarines have thick walls?
To handle pressure
What does biodiversity mean?
Many different living things in one area
What is the name of the ocean floor?
Seafloor
What tools do ROVs use underwater?
Cameras, lights, robot arms, etc.
What helps submarines float or sink?
Ballast tanks
What stores electricity for submarines and ROVs?
Batteries
What zone of the ocean is completely dark?
Deep Ocean
What underwater structure creates new seafloor?
Mid-ocean ridge
What technology helps scientists map the ocean floor?
Sonar
What does buoyancy mean?
The ability to float
Why are submarines important for ocean exploration?
They help scientists explore deep parts of the ocean