This particular instructional activity was written by the National Earth Science Teachers Association, but density is a concept that you can teach at the beginning of the school year in your life, physical, or earth science classes. It...

Students explore salt and fresh water. For this water lesson, students investigate the amount of Earth covered by water. Students compare the amounts of salt water to fresh water. Students create a visual representation to aid...

Another A+ lesson on the impact of climate change comes to you from the National Earth Science Teachers Association. In this installment, learners model the stratification of water in lakes due to temperature differences. The lab also...

Students explore water properties by conducting a class experiment. In this buoyancy lesson, students utilize freshwater, saltwater, plastic cups, hard boiled eggs and food coloring to experiment with the floating capabilities of salt...

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 instructional activity has clearly described activities, and...

Learners explore biology by creating a report for the class. For this oceanography lesson, students research and identify the survival characteristics of a list of freshwater animals by utilizing the Internet and library. Learners...

The introduction to the lesson mentions a sailor's limited capacity to store drinking water on his ship. Pupils then set up an overnight experiment to remove freshwater from salt water by distillation. There is a math and map activity to...

Open learners' eyes to the challenge of finding safe drinking water – something we often take for granted in our country. The PowerPoint presentation includes images, graphs, diagrams, and even a video to stimulate discussion on how we...

Young scholars connect the water cycle concept with local fresh water availability and consumption. They identify waterways in their own region. Students define, predict, research, and map local watershed areas. They research the...

Young scholars take samples from local freshwater sources and examine them for macroinvertebrate life. They take samples from both shallow and deep freshwater environments, measure temperatures, and classify organisms found in their...

Students design an experiment to evaluate the effects of various treatments on the nitrogen cycle in a freshwater aquarium. They are required to maintain a laboratory notebook of all work, measure the key analytes of the biosystem at...

Field trip! The class will review what they know about organisms that dwell in freshwater ponds, then trek down to the old water hole to collect specimens for examination. This includes several web links, useful tips, and an excellent...

Sixth graders work together to complete an experiment about the quality of freshwater. In groups, they collect fresh water samples from a variety of sources and test the pH levels. After completing a KWL chart, they test the amout of...

Students observe the effects of pollution on living organisms. In this pollution lesson plan, students observe fresh water Hydra and look at their structures and movement. They place samples of pond and lake water on the Hydra and...

Students investigate the many varieties of both tropical and freshwater fish, and find out about the anatomy of these creatures. They explore biodiversity in bodies of water, including information about coral reefs, and study the effects...

Fifth graders explore how the tow islands receive and use fresh water. They also address some of the threats to the fresh water supply on each island. Students explore the lesson objectives through water cycle models and experiments.

Students explore density by floating golf balls. They explore having their golf balls float halfway in a container of water and discuss density and its realtionship to where the golf balls are floating. After adding food coloring, they...

Students explore erosion. In this science lesson, students build an island and observe the effects of erosion on the island. Students discuss freshwater ecosystems in Hawaii.

Students record their freshwater usage over a period of a week. They calculate the amount of water used for all water activities such as brushing teeth, flushing the toilet, showering, and washing the dishes. They use an online tally to...

Learners participate in a field and laboratory study to determine if local freshwater mussels are environmentally stressed.

Students investigate the amount of fresh water on earth and which water can be used for consumption. For this fresh water lesson plan, students calculate the amount of fresh water that can be used for consumption on earth. They use a 5...

Fourth graders examine the islands of Hawaii. Using this information, they organize it and create a map or graph that represents the data. As a class, they discuss how the watersheds on the islands are different and how people react to...

Students use determination of dissolved oxygen and water temperature changes to determine the environmental impact from thermal pollution.

Students conduct experiments using water. In this properties of fresh and sea water instructional activity, students investigate boiling point, freezing point, and the water's retention of heat.  Students hypothesize, collect and...