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...
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...
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
Stacking Water
Students experiment with different salinities of water using straws and different colors of water. They collect and interpret data from the experiment.
Curated OER
Sea Water Mixing and Sinking
Middle schoolers 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.
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...
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...
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
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...
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 activity from PBS's Weather and Climate series. After completing a background...
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
What Are The Properties of Sea Water?
Ninth graders conduct research on the subject of sea water. They use a variety of resources to obtain information. There are helpful resource links listed in the lesson. In conjunction with the research students make inquiry of the...
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
The Great Ocean Conveyor
Students investigate water density. In this water density lesson, students conduct an experiment with food coloring, water and salt to see how the salt effects bodies of water.
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
The Open Ocean, What is it and How Does it Change?
Students investigate the ocean environment. In this ocean lesson plan, students discover the physical properties of the ocean. Over two days, students work in small groups investigating ocean maps and creating water currents.
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...
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...
Curated OER
Finding the Deep Water Masses of the Atlantic Ocean
Students 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
What's A Water Column Profile?
Students investigate water column data. In this earth science and seawater lesson, students determine how temperature, salinity, and density have an impact on sea water by viewing and analyzing data obtained from a number of websites....
Curated OER
Water Layering and Circulation
Students examine relationships and interactions between different types of water. They experiment with colored water of different temperature and salinity and discuss how the results relate to real ocean currents.
Curated OER
Water Will, Water Way
Students test tap water for hardness and mineral content. In this environmental science lesson, students identify the different stages of the water cycle. They classify plant and animals according to the rules of taxonomy.
Curated OER
Ocean Layers
Students investigate how temperature and salinity causes ocean layering. In this ecology lesson, students observe and sketch their experimental result. They report their findings in class.