Features
True or False: The ocean has mountains, plains, and ridges like land surfaces.
True
Which organism is a producer?
- zooplankton
- leopard seal
- krill
- phytoplankton
Phytoplankton (plant plankton).
Abriel made a sand castle one afternoon. The next morning, he wanted to show it to Henry, but it was gone. What is the most likely explanation?
The tides changed.
The measurement of salt in water.
What is salinity?
The level of the ocean with the most marine life.
What is the continental shelf?
Look at the food web (on the learning page). What are two predators of fish?
- Leopard seal
- Birds
- Penguins
- Squid
Tides are most affected by these two things.
Moon's gravity and earth's rotation.
Only specially adapted organisms can live at the bottom of the ocean. Why is this?
Algae and other producers need a lot of sunlight. Most ocean algae would be found on this level.
What is the continental shelf?
Look at the food web (on the learning page). Which organisms eat krill? (name at least 2).
- Leopard seal
- Fish
- Squid
- Penguins
- Birds
- Baleen whale
The Gulf Stream (a current) is caused by several factors. List three of them.
Water temperatures, salinity, and wind patterns.
- 10m
- 100m
- 1000m
10m (more sunlight!).
This part of the ocean's crust is very deep and narrow.
What is the oceanic trench?
Look at the food web (on the learning page). What does a baleen whale consume (eat)?
Krill.
What is a major current that affects the east coast of North America?
Gulf Stream.
What happens to the temperature as you increase your depth?
The temperature decreases.
This feature grows taller as it erupts, and eventually forms an island.
What is a sea mount?
How do phytoplankton and zooplankton benefit the entire food chain?
They are the first source of energy.
Wind.
If you could travel from the continental shelf to the ocean floor, what would you experience during your descent?
- Temperature decreases
- Sunlight decreases
- Salinity increases
- Pressure increases