Curated OER
The Weight of Water
Students examine how salt water is more dense than fresh water. They discuss how manatees need to float and sink, conduct a sink or float experiment, and conduct an experiment with eggs and salt and fresh water.
NOAA
Deep-Sea Ecosystems – Life is Weird!
A pool of brine in the deep sea can be up to four times as salty as the surrounding sea water. The deep sea ecosystem relies on chemosynthesis and the organisms that live there are often strange to us. The lesson focuses on researching...
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Why Is The Sea Salty?
Students observe how salt concentration increases in water and how salt remains after water evaporates. In this salty sea lesson plan, student use rock salt, water, containers, and strainers to observe that salt increases each time new...
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Water Density
Students identify and analyze the concept of density using the formula, density equals mass divided by volume. They review the differences in salinity levels of the ocean and note that the changes in density are caused by wind and...
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Layering of Water
Students examine what happens when different types of water meet. In groups, they participate in an activity in which they combine different percentages of salt, fresh and brackish water and record their observations. They let the...
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Water Density and Stability Lab
Learners observe how different water densities and salinity control the depth at which different water masses occur. Submarines are used as a case study. This is a well-designed with an excellent worksheet.
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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.
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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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Water, Water Everywhere, and Nary a Drop to Drink!
Students sing the continent song and locate oceans between the continents on a map. They read "They Earth is Mostly Ocean" and copy notes into their journals. They watch a demonstration of water and saltwater evaporated to see what is...
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Water Currents
Students 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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Why is the Ocean Salty?
In this ocean salt worksheet, students read about the processes that have lead to the salt content in the ocean. Then students complete 5 short answer questions.
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A Funny Taste
Learners participate in a demonstration that illustrates the relative amounts of salt in various bodies of water including the Dead Sea, Sallt Lake, Ocean water and distilled water. They taste and compare various mixtures.
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Oceans of Fun
Here is a great hands-on activity that should lead to a greater understanding of salt water, why the ocean is salty, and how ocean waves are formed. This terrific, old-school lesson has clearly described activities, and all of the...
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A Salty Experiment
Students study salty and fresh waters. In this harbor estuary lesson plan students complete a lab activity on salinity and describe what happened.
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Density Stratification and Ocean Circulation
Students examine how circulation currents of the ocean. They use a tub of hot and cold water to demonstrate the currents. They discover how salinity and temperature of water affect its movement.
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Lesson tow
Students study the ocean and its characteristics. In this oceans lesson students complete a lab activity and are able to predict temperature of certain depths.
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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.
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Introduction to Coral Reefs
Students identify locations of coral reefs, both in the water and around the globe, identify relative depth of corals in the ocean by observing behavior of cold and warm saltwater, and create models of coral reefs.
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Knowledge Quiz
In this oceans quiz worksheet, students complete a 10 question multiple choice quiz covering a variety of concepts related to the ocean.
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Sprinkles 5
In this environment learning exercise, students read the information and complete the survey about their own local habitats and some of the others in Florida.
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Learning Lesson: That Sinking Feeling
Students discover the origin of the Great Ocean Conveyor. They participate in a demonstration showing how salinity and temperature affect water density. They also examine the new sea ice that forms every winter.
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Biocomplexity Lab Activity: Density and Buoyancy of
Students investigate how the density of water changes the buoyancy of
water. Students create a hypothesis about what will happen when placing the
egg into the water.Students can research online different bodies of water (The Red Sea, The...
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Sea Activities
Students explore the sea. In this biology lesson plan, student investigate sea creatures, and sea water. Students discover how to convert sea water into fresh drinking water as well.
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Out of the Deep
Learners observe, describe, and record characteristics of ocean animals (mammals and fish) and sea shells. They conduct an experiment comparing and contrasting sugar water, salt water and fresh water and create a mural of coral reef...