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Water Currents
Middle schoolers demonstrate how ocean currents are influenced by changes in density. They discover that temperature and salintiy affect density as well. They participate in a short experiment to end the lesson.
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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.
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Sea Water Freeze
Students 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
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Third Grade Reading Comprehension Practice
In this reading comprehension worksheet, 3rd graders complete a set of 25 multiple choice questions, reading passages and answering questions after each. An answer key is included.
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Water Pollution Prevention and Conservation
Students examine how to conserve water. They also discover how to prevent water pollution. They examine the Earth's water distribution as well.
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Biocomplexity Lab Activity: Creating Salt Water
The lesson seeks to intorduce to young scholars the properties of salt water and how to create salt water. Teacher gives backgound information about salt water to students. From that point, young scholars dscuss what elements are in...
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Correlation Chapter 1
Students compare ways in which people form different cultures think about and deal with their physical environment and social conditions. They identify examples of change and recognize examples of cause and effect relationships. Students...
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Observing Sea Ice
Students study and observe types of sea ice found in Alaska. In this sea ice lesson, students use the student network for observing weather to study the different types of sea ice. Students study sea ice depicted in Alaskan art.
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A SALT WATER-Y WORLD
Young scholars observe a model of the distribution of the earth's water and compare the relative volumes and percentages of types of water on earth.
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Learning Lesson: Salt 'n Lighter
Students participate in a demonstration showing that as salinity increases density increases as well. They also examine the different densities of air. They discuss the amount of water displaced by large ships.
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Water Quality Monitoring
Students comprehend the four parameters of water quality. They perform tests for salinity, dissolved oxygen, pH and clarity or turbidity. Students comprehend why scientists and environmental managers monitor water uality and aquatic...
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What is an Estuary?
Pupils define the terms estuary and watershed. They conduct an experiment to determine the density differences between fresh and saltwater. They examine the salinity distribution of the Peconic Bay Estuary.