NASA
Rain Gauge Activity
Complete teacher narrative and presentation slides for teaching about Earth's water make up the bulk of this lesson. Embedded within the slide show, you will find videos about the water cycle, keeping track of the limited supply of fresh...
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...
Virginia Department of Education
The Hydrologic Cycle
There is the same amount of water on earth now as there was when it was formed. The water from your faucet could contain molecules that dinosaurs drank! Young scientists build their own hydrologic cycle model and observe it for five...
Kenan Fellows
Use of Dichotomous Keys to Identify Stream Organisms
What kind of organisms are living in the stream? After an explanation on how to use a dichotomous key, groups of three to four use the keys to identify macroinvertebrates from a local freshwater stream. Using the the concept of Stream...
University of Georgia
Heating and Cooling of Land Forms
Compare heating and cooling rates of different land forms. A lab activity has groups collect data on the rate of heating and cooling of soil, grass, saltwater, fresh water, and sand. An analysis of the rates shows how the different land...
NOAA
Please Pass the Salt
Salinity is the focus of two experimenters that work to answer the question, How does salt change the physical properties of water? Super scientists compare the freezing rate of salt and fresh water, combine the two waters to observe how...
Curated OER
Changing Planet: The Case of the Leaky Gyre
The fascinating video "Changing Planet: Fresh Water in the Arctic," introduces your oceanographers to the world's gyres. They learn that melting sea ice is making the gyres larger, and that the changes could, in turn, contribute even...
Polar Trec
Sea Ice Impact
The arctic seas contain currents that are both warm (with high salinity) and cold (relatively fresh water) that circulate throughout the year. Through discussion, a lab, and a web quest, participants explore the impacts of melting and...
Biology Junction
Cnidarians and Ctenophorans
Cnidaria is a broad phylum of 11,000 different species from jellyfish to coral. Most Cnidarians are marine species with a few freshwater examples. A lesson presentation explains the important characteristics of different species of both...
Curated OER
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...
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
Groundwater Concepts
High schoolers use a digital atlas and other electronic resources to explore freshwater reservoirs in Idaho. They discover the importance of groundwater and discuss the agricultural, industrial and domestic uses of underground...
Curated OER
Where is the Water?
Students explore freshwater ecosystems. For this geography lesson, students brainstorm all the lakes and rivers they know then mark them on a map. Students will then mark all the major freshwater resources on each of the seven...
Curated OER
Life in a Drop of Water
Students observe the wealth of living organisms in a drop of water from our freshwater ecosystems. They classify the types of organisms observed as single-celled or multi-cellular and use a key or chart to identify and name the organisms...
Curated OER
Water Environments
In this water environments worksheet, students will brainstorm limiting factors in water biomes, describe the two life zones in the ocean, and compare two types of freshwater ecosystems. This worksheet has 9 short answer questions.
Curated OER
Salt Water vs. Fresh Water
Students 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 believe...
Curated OER
Freshwater Sharks Bite Children at 35th Beach. A Play
Young scholars delve into a study of sharks. In this science lesson plan, students examine the many different scientific occupations, as well as some possible specializations therein, and perhaps a little bit of other life...
Curated OER
Hawaii's Freshwater Ecosystems
Students examine brackish water. In this Science lesson, students observe organisms found in brackish water. Students record their observations of the various organisms.
Curated OER
Water Layering and Circulation
Young scholars 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
Ocean Habitats
Students examine the water samples from a demonstration and discuss the difference between fresh and salt water. They draw different animals that live near or in the ocean and how humans can harm the ocean habitat. They draw pictures of...
Curated OER
British Colonization
For this British Colonization worksheet, students respond to 14 different types of questions related to British Colonization of Australia. First, they describe the First Fleet and how many ships were in it. Then, students describe early...
Curated OER
The Different Fresh Water Ecosystems
Students summarize the characteristics of an ecosystem. In this biology lesson, students identify five major fresh water ecosystem. They define terms and write a journal about what they learned.
Curated OER
Fresh Water From the Oceans?
Learners 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
Freshwater Ecosystems Closing Lesson
High schoolers create a commercial on how to care for fresh water. In this environmental science lesson, students write a script and use materials as props in the commercial. They present it in class and share comments and feedback.