Currents
Tides
Water Types
Ocean Basins
100
What are the types of currents?
Surface and Deep
100
What's the average time between a tide change?
12 hours
100
What types of water are there? (not states of matter)
Saltwater and fresh water.
100
What's the technical definition of a basin?
Anywhere on Earth covered in seawater.
200
Which type of current is colder?
Deep Currents
200
Does the moon alone control the tides?
No, there's more factors
200
What type of water is more dense?
Saltwater
200
What's the geographic definition of a basin?
Anywhere on Earth covered in seawater, under sea level.
300
In what direction do gyres spin in the Northern Hemisphere?
They spin Clock-wise
300
Simply, what does the moon do to change tides?
The moon's gravitational pull pulls the tide up when it is aligned to that part of the Earth.
300
Why isn't saltwater drinkable?
Because with all the salt it has, the effort of your organs extracting it actually dehydrates you more than it hydrates you.
300
About how much of Earth's ocean floor does the deep ocean basin cover?
One third, or 30%
400
How are deep ocean currents also known as?
Global Conveyor Belt
400
What are the factors affecting the tides?
Moon, sun, and Earth's rotation
400
Is the saltwater salt the same as the table salt in the store? Give a short explanation.
NO, saltwater contains a diverse amount of salts.
400
What's the depth range in the deep ocean basin?
2.5 miles-3.5 miles
500
How are deep ocean currents formed?
At the north, saltwater freezes, so the salt falls to the bottom. Water then rushes to take its place, thus creating a current
500
Is the full gravitational force from the sun and moon applied to Earth? Give a short explanation.
No, the gravitational pull wavers because they are both a large distance away, so not all of the force is applied.
500
What percentage of the water on Earth is fresh water?
About 1%
500
Name two features in the deep ocean basin.
Deep-sea trenches, abyssal plains, and seamounts.
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