Explain how an increase in temperature affects the density of ocean water. Use your own words.

An increase in temperature causes the water molecules to move faster and spread out, resulting in a decrease in density.

Describe the relationship between salinity and density in ocean water. What happens to density as salinity increases?

As salinity increases, the density of ocean water also increases.

Imagine two bodies of water: one is cold and very salty, and the other is warm and less salty. Which body of water would sink and why?

The cold and very salty water would sink because it is denser than the warm and less salty water.

How do differences in water density contribute to the formation of ocean currents?

Density differences create movement as denser water sinks and less dense water rises, leading to currents.

Ocean Currents and Density

Name: Ocean Currents and Density
Author: Insta~Lesson

8th Grade · Science · 45 min

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Learning Objective

I can explain how temperature and salinity affect the density of ocean water and create currents.

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Ocean Currents and Density

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Learning Objective

Warm-Up Video

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About Insta~Lesson

How Insta~Lesson Helps Teachers Plan

How Insta~Lesson Supports Instruction Schoolwide