Basics
What can a change in one part of the ocean system do?
Affect the other parts
What are the two main factors used to divide the ocean into zones?
Sunlight
Depth
What two things shape surface currents?
Wind
Earth's rotation
What is the main starting source of energy in food webs?
Sunlight
Name 2 actions people can take to help protect the oceans.
Use less plastic
Keep trash out of waterways
Choosing responsibly caught seafood
Using reusable water bottles
What is an ocean system?
All the connected parts of the ocean working together
What happens to light, temperature, and pressure as you travel deeper in the ocean?
It gets darker, colder, and pressure increases.
What is a current?
A steady flow of water from one place to another.
What do phytoplankton use sunlight to do?
Make food
Name 2 things the oceans provide for people.
Food
Jobs
Why might animals in different zones need different adaptations?
The conditions in each zone are very different from one another.
Only a small amount of sunlight reaches there.
Name 3 things currents carry around the planet.
Heat
Nutrients
Tiny organisms
What do zooplankton eat?
Phytoplankton
Name 2 reasons why oceans systems matter to the planet.
Support many kinds of life
Help move heat around Earth
Play a major role in the water cycle
Name the four things the ocean system interacts with.
Air
Land
Ice
Sunlight
How do animals in the abyssal zone survive?
By eating food that sinks down from the zones above.
How do deep currents form?
When water cools and becomes saltier it sinks downward.
What is a predator?
An animal that hunts and eats other animals for food
Protect habitats
Reduce pollution
Name the four parts of an ocean system.
Water
Living things
Seafloor features
Moving currents
In which zone do lanternfish and squid make their own light?
The twilight zone.
How can ocean currents increase the temperature of nearby land?
By bringing warmer, wetter air to nearby coasts.
What do the arrows in a food web show?
How the energy moves from animal to animal as they are eaten.
What role does the ocean play in the water cycle?
It moves water between the ocean, land, and air