Curated OER
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
Georgian Court University
Introduction to Marsh Ecology
Compare and contrast the characteristics of fresh and salt water marshes. After exploring the typical plants and animals found in each marsh type, participants use a set of flash cards to sort into fresh and salt water marsh life. Their...
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...
Curated OER
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.
Curated OER
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...
Curated OER
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...
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
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...
Curated OER
What is a River?
Students 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 a map...
Curated OER
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.
Curated OER
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...
Curated OER
Aquatic Organisms
Learners create a poster describing the five characteristics of a salt water organism compared to a fresh water organism.
Curated OER
Diaper Challenge
Students 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 same...
Curated OER
The Sun as the Driving Force of the Water Cycle
Learners study the water cycle and how the sun is an important factor. For this water cycle lesson students investigate how to desalinate water and explore the different densities of fresh versus saltwater.
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...
Curated OER
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.
Curated OER
The Weight of Water
Students examine how salt water is more dense than fresh water through experimentation with eggs.
Curated OER
Osmosis
Fifth graders explore osmosis as they watch organisms divide. In this organism lesson, 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...
Curated OER
Is the Hudson River Too Salty to Drink?
Learners 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...
Curated OER
Surface Water and Groundwater
Learners examine distribution of water and minerals. For this surface and groundwater lesson, 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...