Curated OER
Summer Intern
Your young apprentices build a function describing the percent concentration of salt in a brine. The rational function is then related to the parent function, y= 1/x, and graphed. Finally, the apprentices predict the amount of fresh...
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Science Lesson #2
Fourth graders explore and experiment with objects that float to see if they float differently in salt water or fresh water. After the experiment, they write a paragraph in their science journal explaining how fresh water and ocean water...
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New Jersey Estuaries
Students experiment to discover that salt water is denser than fresh water by creating color coded solutions. They examine how heavy rainstorms and high tides develop layers of different degrees of density.
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Kids for Conservation Lesson 1
Third graders observe various demonstrations dealing with the water on our earth, such as a comparison of the amount of salt water and fresh water on earth, then participate in a role playing activity in which they become a molecule of...
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Salt Water vs. Fresh Water
Middle schoolers explore why the oceans do not freeze. They explain why they think the Atlantic Ocean does not freeze. Students are given background information about what they are doing. They create a hypothesis about what they...
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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.
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Fresh Water From the Oceans?
Students participate in an activity in which they demonstrate how the evaporations of water from the oceans results in fresh water in the form of rain. They create a saltwater solution in a flask and boil the water until most of the...
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What is a River?
Young scholars study the various types of bodies of water: rivers, oceans, lakes and ponds. They observe models of each and then use clues to discuss how they are alike and different. They imagine they have found a new planet and draw...
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Water Wars
In this water worksheet, students match 5 water uses to their definitions, they unscramble 3 terms related to water supply to complete sentences and they answer 2 questions about water diversion.
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Where is Water Found?
Fourth graders examine the amount of water and its distribution on Earth. As a class, they brainstorm a list of where water can be found and classify the places according to salt water, fresh water or glaciers. They estimate how much...
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A SALT WATER-Y WORLD
High schoolers observe a model of the distribution of the earth's water and compare the relative volumes and percentages of types of water on earth.
San Francisco Public Utilities Commission
Let's Save Water: Water Conservation
Did you know that cutting down your shower by one minute a day can save five gallons of water? Learn about water conservation with a science reading activity. After kids finish reading key terms and water-saving tips in a reading...
San Francisco Public Utilities Commission
Water from the Well
How much water does it take to brush your teeth? How about to wash your clothes? Perform an experiment that measures water usage in everyday tasks and compares them to the days before indoor plumbing, specifically the California gold...
Core Knowledge Foundation
Animals and Habitats Tell It Again!™ Read-Aloud Anthology
A read-aloud anthology explores various habitats and the animals that inhabit them, from the Artic to the desert, the forest, and bodies of water. First graders listen to and discuss texts and complete word work. Each lesson offers...
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Aquatic Organisms
Students create a poster describing the five characteristics of a salt water organism compared to a fresh water organism.
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Diaper Challenge
Middle schoolers compare the absorbency of a regular diaper and a swim diaper in fresh water and salt water. In this absorbency lesson plan, students mass the diapers and place them in water and determine the change in mass. They do the...
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The Sun as the Driving Force of the Water Cycle
Students study the water cycle and how the sun is an important factor. In this water cycle lesson students investigate how to desalinate water and explore the different densities of fresh versus saltwater.
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One World Ocean
Learners 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...
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Aquatic Organisms and Their Habitats
Students investigate the presence of specific organisms in a freshwater habitat to determine the quality of that habitat. They conduct a field study and distinguish and classify organisms found during the field study.
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The Weight of Water
Young scholars examine how salt water is more dense than fresh water through experimentation with eggs.
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Osmosis
Fifth graders explore osmosis as they watch organisms divide. In this organism lesson plan, 5th graders use potatoes to experiment with the effects of salty water in the body. Students discuss what osmosis is and record what happens in...
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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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Surface Water and Groundwater
Students examine distribution of water and minerals. In this surface and groundwater instructional activity, students conduct an experiment with fresh and salt water making hypothesis and drawing conclusions about minerals.
National Wildlife Federation
Water, Water Everywhere?
Visibly display the location of the water in the world. Using 12 liters of water to represent the total amount of water in the world, the class measures out the water located in different areas, such as the ocean and ice caps. Class...