Curated OER
A SALT WATER-Y WORLD
Students 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
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...
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. In this water cycle lesson plan 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
Middle schoolers 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 instructional activity, 5th graders use potatoes to experiment with the effects of salty water in the body. Students discuss what osmosis is and record what...
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
Students examine distribution of water and minerals. In this surface and groundwater lesson, students conduct an experiment with fresh and salt water making hypothesis and drawing conclusions about minerals.
Curated OER
Sink or Float Experiment
Students participate in an experiment to determine which objects float or sink. They use different amounts of salt for the objects and discover as the salt content increases, objects will float. They record their predictions and what...
American Chemical Society
Density: Sink and Float for Liquids
We don't think of liquids as floating typically, but a quick look at any oil spill tells a different story. Lesson explores various densities of liquids and why this fact is important. After observing the density variation, scholars...
Curated OER
Make An Egg Float!
Students analyze density. In this density lesson plan, students experiment with floating an egg. Students discover that salt added to water changes the density of the water allowing an egg to float.
Curated OER
The Weight of Water
Learners 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.
Utah LessonPlans
Water, Please!
Students use a globe and cups of water to illustrated the amount of water versus land on earth and the amount of fresh versus salt water available to plants and animals.
Curated OER
Out of the Deep
Students 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...
Curated OER
Marvelous Marshes of the Chesapeake
Third graders identify sources of salt water and fresh water that enter the Chesapeake Bay. They build a model watershed and describe how runoff enters the Bay.
Curated OER
Making and Using a Hydrometer
Learners build a hydrometer to measure the densities of fresh and salt water samples. They record the water temperature and density and use the temperature, density, and salinity conversion graph to locate the salinity. Finally,...
Curated OER
Water Sources in Cape Verde and West Africa
Learners analyze the importance of a fresh water supply in Cape Verde, researching five methods of obtaining and conserving water there. Students create and present displays demonstrating their understanding of the methods of water...
Curated OER
Modeling Estuaries
Students create a model estuary. In this modeling estuaries lesson, students identify characteristics and mix water of varying densities. Students form a hypothesis, conduct an experiment, and analyze the results.
Curated OER
Our Important Wetlands and Uplands
Students define wetlands. They list the benefits wetlans provide to man and nature. They compare types of wetlands that exist in northeast or east-central Florida. They list ways uplands affect wetlands and other water bodies.
Curated OER
It's Too Salty!
Students examine water shortage and the process of changing salt water to fresh water. They examine a world map, define key vocabulary terms, conduct experiments involving seeds and salt water and creating distilled water, and illustrate...
Curated OER
Density: Floating, Sinking, and Suspending
Students observe teacher demonstrations that illustrate density. In this density lesson, the teacher demonstrates how air bubbles in a carbonated drink can cause a raisin to float and how an egg sinks in fresh water, but floats in salt...
Curated OER
Channel Catfish
Students study the life and biology of the Channel Catfish. In this aquatic biology lesson, students will examine the external and internal features of the catfish along with their breeding habits and environment. This lesson includes...
Curated OER
Teacher's Guide For: Water Temperature and Salinity Experiment
Students experiment with water density, temperature and salinity. In this water lesson, students observe how the coldest water sinks to the bottom of a test tube, and how saltwater sinks in comparison to freshwater.