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.
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Ranking Salinity
Students explain the uses of titration in chemistry and in industry. In this chemistry lesson, students determine the concentration of an unknown solution using titration. They calculate the percent of salt in saline solutions.
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Salinity Experiment
In this salinity experiment worksheet, students follow the procedures to set up an experiment about how salinity affects the weight of water.
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Salinity in Mill Creek
Fifth graders use water samples collected at three different locations of Utah's Mill Creek to test salinity of water, hypothesize about salinity levels at each location, record results, and discuss their findings with classmates. ...
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Outcomes Science 4
In this outcome science 4 worksheet, students apply scientific knowledge to answer and calculate a variety of questions. Students research the answer to several questions using the websites suggested.
Institute for Systems Biology
Introduction to Saline Environments & Microbial Halophiles
If you do not mind wading through unrelated headings (This is not for a physics or STEM course, as it states.) and content (The lesson opens with an article about neurology, not halophiles.), then you will find a valuable resource on...
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Stacking Water
Learners experiment with different salinities of water using straws and different colors of water. They collect and interpret data from the experiment.
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How Dense is Salt Water?
Young schoolers explore the concept of linear regression. They determine the mass and density of salt water. Pupils add salt to water and record the density as salinity increases, and perform a linear regression on the data to model the...
Polar Trec
Nature's Density Column
Nature provides density columns in the polar regions that provides food for many animals. Young scientists build their own density columns with water in order to answer analysis questions. Through a slideshow presentation, scholars...
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Salinity
Learners 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.
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Conductivity - Pass the Buoy and Pepper, Please
Buoys around our coastlines are equipped with sensory devices which monitor temperature, salinity, and water pressure. Emerging earth scientists examine some of this data and relate salinity to the electrical conductivity of the surface...
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Sea Water Freeze
Middle schoolers observe how salinity affects the time it takes water to freeze. They participate in an experiment to determine that ice is essentially salt-free whether formed from fresh or salt water
Polar Trec
Do You See What Icy?
Here is a lesson that kicks off with a question. "How does ice floating on the ocean act as it melts?" As learners investigate this natural phenomenon, they'll discover that it has a lot to do with temperature, salinity, and the effect...
NASA
Freshwater Availability Classroom Activity
This science assignment produced by NASA teaches inquiring minds the distribution of Earth's water. Learners will appreciate and understand the importance of fresh water and how weather and climate affects everything.
Nuffield Foundation
Dissection of the Ventilation System of a Locust
Jiminy cricket! If you find yourself plagued by fear of dissection, these locust respiratory system dissection directions will walk you through everything you need to know. Teens inspect a living locust to begin with, then jump over to...
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
Science Test B-Grade 5
In this grade 5 science test worksheet, 5th graders complete a 30 question multiple choice quiz covering a variety of grade 5 concepts.
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Is the Hudson River Too Salty to Drink?
In this estuary worksheet, students examine data about the salinity of the Hudson River, create a graph from given data and complete 12 short answer questions about the data and graph.
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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....
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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...
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Is the Hudson River Too Salty to Drink?
Students explore reasons for varied salinity in bodies of water. In this geographical inquiry lesson, students use a variety of visual and written information including maps, data tables, and graphs, to form a hypothesis as to why the...
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Molecular Movement in Water Part 1- Diffusion
Students obseve and compare molecular movement within water at various temperatures and of varying salinity. They discuss the movement of water on a larger scale which can affect the movement and concentrations of microbial populations...
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Locating the Salt Front - Section 1
In this salt front of the Hudson River instructional activity, 7th graders first read an excerpt about the lower portion of the Hudson River that is an estuary. Then they use a colored pencil to plot salinity data from the table shown on...
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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.