River water is taken to the end of the river, which is called this.
What is the mouth?
100
When the water comes way up onto the shore.
What is high tide?
100
The most shallow area just beyond the land.
What is the continental shelf?
100
This area is above the abyss and has is lit by the sun.
What is the sunlit zone?
200
animals that scurry, crawl, hop, scoot, but don't swim
What is benthic?
200
These currents are found near the surface of the ocean.
What is surface currents?
200
When the water pulls back exposing the beach.
What is low tide?
200
Beyond the continental shelf, a drop off into the deep ocean below.
What is continental slope?
200
Upon leaving the sunlit zone, you enter this fairly dark zone which has a very little sunlight coming through.
What is the twilight zone?
300
Benthic animals that sit, such as coral and sponges.
What is sessile?
300
Circular patterns in currents.
What are gires?
300
This heavenly body causes the tides.
What is the moon?
300
One part near the end of the continental slope that has a much more gentle slope.
What is the continental rise?
300
The darkest part of the ocean.
What is the midnight zone?
400
The two types of planton
What is phytoplankton and zooplankton?
400
These deep ocean currents are caused by the temperature of the water and the amount of salt in the water.
What are thermohaline currents?
400
Besides the gravitational pull of the moon, this also pulls at the water.
What is the sun?
400
The deep dark ocean floor at the end of the continental rise.
What is the abyssal plain or the abyss?
400
Some animals' ability to make their own light.
What is bioluminesence?
500
Zooplankton uses this to make their own food.
What is the sun?
500
Some types of these animals instinctively know how to find animals in currents, and clean the water by taking in water and removing small creatures for food.
What are filter feeders?
500
During a full moon or new moon, these high tides are higher than usual and these low tides are lower than usual.
What are spring tides?
500
This weight is one reason why we can not travel to the bottom of the abyssal plain.
What is water pressure?
500
These underwater spaceships can travel to the abyss.