Curated OER
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...
Curated OER
Ocean Circulation
In this physical oceanography PowerPoint, viewers learn about ocean circulation, sea surface temperatures, and salinity. Relationships among these aspects are explained, as well as their impact on the atmosphere and climate. Each slide...
NOAA
Ocean Layers I
How is it possible for ocean water to have layers? The sixth installment of a 23-part NOAA Enrichment in Marine sciences and Oceanography (NEMO) program investigates factors that cause different water densities to occur. Experiments...
Curated OER
Water Density and Salinity
Students observe how different water densities control the depth at which different water masses occur. They explain one fact that they comprehend about salt water. Students comprehend that temperature and salinity affect the density...
NASA
Inferring Relationships Among Sea Surface Salinity & Other Variables in the North Atlantic
Some say a picture is worth a thousand words—even from a hundred miles away! Learners review satellite data to analyze ocean variables such as temperature, salinity, evaporation, and precipitation. They look for patterns in the data and...
PBS
Sea Surface Temperature, Salinity, and Density
Earth's vast ocean is full of mysteries! Science scholars discover the big-picture properties that influence its characteristics at different latitudes using a lesson from PBS's Weather and Climate series. After completing a background...
NOAA
Ocean Layers II
Now that you know the ocean has layers, let's name them. The seventh installment of a 23-part NOAA Enrichment in Marine sciences and Oceanography (NEMO) program covers terminology associated with ocean layers, such as thermocline and...
Curated OER
Sea and Ice Salinity
Students conduct an experiment. In this salinity lesson, students learn about sea ice, why it is important and how changing amounts can affect the sea. Students conduct an experiment to find out the effects of salinity on the formation...
University of Waikato
Temperature, Salinity and Water Density
The difference between sinking and floating may be a little salt. Young experimenters analyze the effect of salt and temperature on the density of water. They use their results to predict the effect of climate change on ocean ecosystems.
Curated OER
Salinity Lab
In this salinity worksheet, students simulate conditions of salt and fresh water mixing and observe the various densities of these solutions based on their salinity.
NOAA
What's a CTD?
Why are the properties of the water important when exploring the ocean? Young scientists discover the tools and technology used in deep sea exploration in the fourth installment in a five-part series. Groups work together to examine...
NOAA
Through Robot Eyes
How do robots assist ocean explorers in collecting data and images? The final installment in a five-part series has science scholars examine underwater images collected by robots and identify the organisms shown. Groups then calculate...
Curated OER
Salinity
Students take a provided ocean Trivia Quiz in order to start a discussion of the ocean. They then perform an experiment on how the amount of salt in the ocean affects it and varies from ocean to ocean.
Curated OER
Properties of the Ocean: Change
Students research and create a visual presentation on the seasonal salinity of the Earth's oceans. They apply the research in a simulation of a lab disaster in which they must relabel ocean samples.
Curated OER
Factors Affecting Ocean Currents
Students design and conduct an experiment to determine the effect of salinity and temperature changes in the movement of ocean currents. In this earth science lesson, students record observations and collect data. They share their...
Curated OER
Finding the Deep Water Masses of the Atlantic Ocean
Learners describe the role of density in driving deep ocean currents and the density layers of the ocean. They determine that the ocean is one continuous body of water with global currents that interact, with water surrounding all...
Curated OER
One World Ocean
Students compare and contrast the properties of salt water in the oceans/seas and freshwater elsewhere on the planet. They also analyze mixing caused by currents in the ocean, including the effects of warm and cold water as well as with...
Curated OER
The Open Ocean, What is it and How Does it Change?
Students investigate the ocean environment. In this ocean lesson, students discover the physical properties of the ocean. Over two days, students work in small groups investigating ocean maps and creating water currents.
Curated OER
Sea Water Mixing and Sinking
Students investigate the role of temperature and salinity in determining seawater density. They use a Temperature-Salinity Diagram to examine the effects of mixing on density.
Curated OER
Ocean Water
In this ocean water worksheet, students use 6 given terms related to ocean water, early Earth and ocean components to complete the sentences. They also answer 4 questions about seawater, the effects of volcanoes on oceans and ocean life.
Centers for Ocean Sciences
Ocean and Great Lakes Literacy: Principle 1
Is your current lesson plan for salt and freshwater literacy leaving you high and dry? If so, dive into part one of a seven-part series that explores the physical features of Earth's salt and freshwater sources. Junior hydrologists...
Curated OER
Saltwater: Nifty Aqueous Colorful Layers
A classic investigation on the density of liquids is explained for you in this lesson plan. Te begin, you prepare water samples of different salinities and then add different food coloring to keep them separated and easily identified....
Curated OER
Count Marsili & the Mediterranean Current
Learners integrate history and science while discovering how salinity affects the density of water. After a lecture/demo, students work in groups to complete a lab activity that demonstrates how salinity affects the density of water.
Curated OER
Salinity
Learners define and discuss salinity, conduct classroom experiment to determine salinity of water sample by using hydrometer, record predictions, and demonstrate understanding of how salinity influences object's ability to float in water.