Understanding Ocean Currents and Salinity
Interactive Video
•
Science
•
6th - 7th Grade
•
Practice Problem
•
Hard
Nancy Jackson
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between salinity and the density of ocean water?
Salinity does not affect water density.
Higher salinity increases water density.
Lower salinity increases water density.
Higher salinity decreases water density.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the lab experiment, why is it important to use different colors for each cup of water?
To ensure the water does not mix.
To easily distinguish between different salinity levels.
To make the experiment more visually appealing.
To match the colors of the ocean.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when you start with the most dense water in the straw during the experiment?
The water evaporates.
The water changes color.
The layers mix and become indistinguishable.
The layers remain distinct.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does salinity affect the movement of ocean currents?
Salinity has no effect on ocean currents.
Higher salinity causes water to sink.
Lower salinity causes water to sink.
Higher salinity causes water to rise.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the deeper ocean water generally more salty?
Because of the pressure at greater depths.
Because less dense water rises, leaving denser, saltier water below.
Due to the accumulation of salt over time.
Because it is closer to the ocean floor.
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