Students experiment with currents caused by temperature variations that simulate the origins and flow of polar bottom currents. They discover water density is affected by temperature and salinity, resulting in deep water currents.
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Investigating the Effect of Salinity on the Density and Stability of Water
Water with varying amounts of dissolved salt are dyed and then used to compare densities. The objective is to discover the effect of salinity, and therefore density, on ocean water on the stability of the ocean. Many branches of science...
6th - 8th Science
That Sinking Feeling: Density Currents Lab
Seawater density varies depending upon your location, which means that ships float higher or lower in the ocean depending upon their location as well. In a hands-on activity, individuals explore the density of ocean water. In groups,...
6th - 12th Science CCSS: Adaptable
Understanding the C’s: Wind Circulation, Coriolis Effect, Surface Currents, Ocean Currents and Climate
There's more to climate than just the weather — explore the different components that affect weather with an enlightening resource. A hands-on unit takes an inquiry-based approach to studying wind and ocean currents. Learners discover...
7th Science CCSS: Designed
Bill Nye The Science Guy on Ocean Currents
Density drives the ocean currents. The difference in density is caused by the sun heating up the water and causing evaporation that leaves salt behind. The result? Thermohaline circulation! You could highlight this fine film in your...
2 mins 5th - 8th Science
Density Column Lab - Part 2
Groups suspend objects within layers of liquids to determine the densities of different liquids and compare them to the densities of objects calculated in Part 1. The groups then carefully test their calculations by layering the liquids...
7th - 9th Science CCSS: Designed